A musical instrument manufacturer hires you as consultants to help them sell their new trumpets.


through a customer survey, when the price of cach trumpet is $220.18, a total of 110 trumpets


would be sold at their la crosse store. the same survey said that if the price of each trumpet was


$160.74, a total of 128 trumpets would be sold. in order to make the new trumpet, the company


knows that it will have to buy (once and once only) $3274.78 of equipment, and after that, cach


individual trumpet will cost them $90.05 cach to make.



1) find the price-demand equation, assuming a linear model, with p for price and x for the number of trumpets



2) what should be the price of each trumpet to break even?



3) what should be the price of each trumpet to maximize profit?

Answers

Answer 1

1. The price-demand equation for the trumpets is:

   x = 238.18 - 1.09p

2. The manufacturer should set the price of each trumpet at $296.50  to break even        

3. The manufacturer should set the price of each trumpet at $138.63 to maximize profit.

In this problem, the manufacturer has conducted a customer survey and found out that the price of each trumpet affects the demand for it. We need to analyze this data and come up with a price-demand equation that helps the manufacturer set the price of each trumpet to maximize profit.

To start with, we need to assume a linear model, where the demand for the trumpets is directly proportional to the price. We can represent the demand as "x" and the price as "p". Using the data from the survey, we can form two linear equations:

110 = ap + b     (1)

128 = cp + d    (2)

Here, a, b, c, and d are constants that we need to find. We can solve these equations simultaneously to get the values of a, b, c, and d.

Subtracting equation (2) from equation (1), we get:

-18 = (a-c)p + (b-d)   (3)

Dividing both sides of equation (3) by -18, we get:

p = (d-b)/(c-a)          (4)

Using equation (4), we can find the value of p, which is the price at which the demand for trumpets is equal to the values obtained from the survey. Substituting the values from either equation (1) or (2) into equation (4), we get:

p = ($160.74 x 110 - $220.18 x 128)/(-18 x 110 + 18 x 128)

  = $186.46

Therefore, the price-demand equation for the trumpets is:

x = 238.18 - 1.09p

To answer the second question, we need to find the price of each trumpet at which the manufacturer will break even. In other words, the revenue earned from selling the trumpets should be equal to the total cost incurred in making and selling them.

We know that the one-time cost of buying equipment is $3274.78, and each trumpet costs $90.05 to make. Let's represent the break-even price as "[tex]P_{be}[/tex]". Then we can form the following equation:

110[tex]P_{be}[/tex] = 3274.78 + 110 x 90.05

Solving for [tex]P_{be}[/tex], we get:

[tex]P_{be}[/tex]= $296.50

Therefore, the manufacturer should set the price of each trumpet at $296.50 to break even.

To answer the third question, we need to find the price of each trumpet that maximizes the profit for the manufacturer.

The profit is given by the revenue earned minus the total cost incurred. Let's represent the profit as "P" and the price as "p". Then the profit equation becomes:

P = xp - (3274.78 + 90.05x)

To find the price that maximizes profit, we need to take the derivative of the profit equation with respect to p and equate it to zero.

dP/dp = x - 90.05 = 0

Solving for x, we get:

x = 90.05

Substituting this value of x into the price-demand equation, we get:

p = $138.63

Therefore, the manufacturer should set the price of each trumpet at $138.63 to maximize profit.

To know more about Equation here

https://brainly.com/question/17348851

#SPJ4


Related Questions

16 students at a school were asked about their favorite pasta dish. A graph of the results is on the left.
Create a bar graph showing the possible results for all 400 students in the school. Be sure to number the vertical axis.

Answers

Answer:

Step-by-step explanation:

to solve this question, we need to use the graph on the left to find the proportions of students who prefer each pasta dish, and then multiply those proportions by 400 to get the estimated number of students in the whole school who prefer each pasta dish. Then we need to plot those numbers on a bar graph with the pasta dishes on the horizontal axis and the number of students on the vertical axis. The graph below shows one possible way to create the bar graph:

We can see that the vertical axis is numbered from 0 to 120 in increments of 20. The bars show the estimated number of students who prefer each pasta dish, based on the sample of 16 students. For example, since 4 out of 16 students prefer spaghetti, we can estimate that 4/16 x 400 = 100 students in the whole school prefer spaghetti. Similarly, since 3 out of 16 students prefer lasagna, we can estimate that 3/16 x 400 = 75 students in the whole school prefer lasagna. We can repeat this process for the other pasta dishes and plot them on the graph.

✧☆*: .。. Hope this helps, happy learning! (*✧×✧*) .。.:*☆

Wesley makes spherical fish tanks with a diameter of 30cm. Kate requests a smaller tank with half the volume of the tank that Wesley usually makes. Kate tried to figure out the approximate diameter of the smaller tank, but she made a mistake. In which step did Kate first make her mistake?

Answers

Kate's mistake was in Step 2: "Divide the volume of Wesley's tank by 2." Since she wants a tank with half the volume of Wesley's tank, she should have divided the volume of Wesley's tank by 2, not the radius.

How to determine  which step did Kate first make her mistake

The correct approach would be to use the formula for the volume of a sphere:

V = (4/3)πr^3

Since Wesley's tank has a diameter of 30 cm, its radius is 15 cm. Substituting this value into the formula gives:

V = (4/3)π(15)^3

V ≈ 14,137 cm^3

To find the radius of the smaller tank with half the volume, Kate should have solved for the radius using the formula for the volume of a sphere:

(4/3)πr^3 = (1/2)(4/3)π(15)^3

Simplifying this equation gives:

r^3 = (1/2)(15)^3

r ≈ 10.8 cm

Therefore, the approximate diameter of the smaller tank should be 21.6 cm (twice the radius), not 10.8 cm.

Learn more about volume at https://brainly.com/question/463363

#SPJ1

Question 1 (multiple choice worth 2 points) (10.03, 10.04 lc) which digital text feature plays music or speaking on its own? animation

interactive

elements

sound text​

Answers

Based on the given options, the digital text feature that plays music or speaking on its own is "sound." The correct option is sound.

Digital texts can incorporate various features to engage readers and enhance their experience. These features include:

1. Animation: Visual effects and motion graphics that add dynamic elements to a digital text. Animation can be used to illustrate complex concepts, tell stories, or create visual appeal.

2. Interactive elements: Components of digital texts that allow users to interact with the content, such as hyperlinks, buttons, quizzes, or navigation tools. Interactive elements can make digital texts more engaging and help users find information more efficiently.

3. Sound: Audio elements that play music, speaking, or other sounds. Sound can be used to provide additional information, create atmosphere, or guide users through a digital text.

4. Text: The written content of a digital text. Text can be formatted in various ways, such as using different fonts, colors, or layouts, to make digital texts more accessible and visually appealing.

In this case, the feature that plays music or speaking on its own is "sound." Sound elements in digital texts can enhance the user experience by providing audio feedback, creating a more immersive environment, or adding an additional layer of information.

Know more about digital text here:

https://brainly.com/question/12336186

#SPJ11

Blank 1 or B =

Blank 2 or P =

Blank 3 or l =

Answers

The part of the surface area equation are

Part 1 = B = Base areaPart 2 = P = Perimeter of basePart 3 = l = Height of pyramid

Completing the part of the surface area equation

From the question, we have the following parameters that can be used in our computation:

SA = B + 1/2Pl

In the equation, we have

Part 1 = B

Part 2 = P

Part 3 = l

When the above parts are labelled, we have

Part 1 = B = Base area

Part 2 = P = Perimeter of base

Part 3 = l = Height of pyramid

Read mroe about surface area at

https://brainly.com/question/26403859

#SPJ1

Lin's smart phone was fully charged when she started school at 8:00 a. M. At 9:20 a. M. , it was 90%


charged, and at noon, it was 72% charged.


1. When do you think her battery will die?


2. Is battery life a function of time? If yes, is it a linear function? Explain your reasoning.

Answers

1. It's impossible to determine exactly when Lin's battery will die without more information on her phone's battery capacity and usage patterns. However, we can estimate that it will likely die sometime after noon if the rate of battery drain remains constant.

2. Yes, battery life is a function of time. The longer a battery is in use, the more its charge will deplete. However, it is not necessarily a linear function as the rate of battery drain can vary depending on factors such as usage patterns, app activity, and temperature. In this specific case, it appears that the rate of battery drain may be slowing down as the percentage decrease from 90% to noon is less than the decrease from fully charged to 90%.

In calculus and related areas, a linear function is a function whose graph is a straight line, that is, a polynomial function of degree zero or one. For distinguishing such a linear function from the other concept, the term affine function is often used. A linear function from the real numbers to the real numbers is a function whose graph (in Cartesian coordinates) is a non-vertical line in the plane. The characteristic property of linear functions is that when the input variable is changed, the change in the output is proportional to the change in the input.

Linear functions are related to linear equations.

To know more about linear function. Click on the link.

https://brainly.com/question/20286983

#SPJ11

Problem 3: enter the value of c when the expression 12.2x + c is
equivalent to 6.1(2x - 3.4).

Answers

The value of c that makes the two expressions equivalent is -20.74.

Let's start by simplifying the expression 6.1(2x - 3.4). To do this, we use the distributive property of multiplication, which states that a(b + c) = ab + ac. Applying this to our expression, we get:

6.1(2x - 3.4) = 6.1(2x) - 6.1(3.4) = 12.2x - 20.74

Now we can rewrite the equation we want to solve as:

12.2x + c = 12.2x - 20.74

To solve for c, we need to isolate it on one side of the equation. We can do this by subtracting 12.2x from both sides:

c = -20.74

To know more about expression here

https://brainly.com/question/14083225

#SPJ4

Tabitha bought a new SUV and obtained a loan for $29,000. The annual interest


rate is 4. 3% for 7 years. If Tabitha takes the loan for 5 years instead of 7, she will


save. 5% on the interest rate. How much less will Tabitha pay for her SUV if she


takes the loan for 5 years? *

Answers

Tabitha could pay $4,408.29 less for her SUV if she takes the loan for five years in place of 7.

To calculate the total amount Tabitha might pay for the SUV with a 7-year loan, we are able to use the compound interest formula for calculating the total amount of a loan, that is:

[tex]total amount = principal x (1 + interest charge)^{time}[/tex]

Wherein:

principal is the amount of the loaninterest charge is the annual interest rate Time is the length of the loan in years

With a 7-year loan, the full amount Tabitha could pay is:

[tex]total amount = $29,000 x (1 + 0.043)^{7} = $37,501.76[/tex]

To calculate the overall amount she could pay with a 5-year loan and a 5% decrease interest rate, we first need to calculate the new interest price. A 5% discount inside the interest price of 4.3% is:

New interest price = 4.3% - 5% = 3.3%

Then we can use the equal formula as before to calculate the total amount with the 5-year mortgage:

[tex]total amount = $29,000 x (1 + 0.033)^{5} = $33,093.47[/tex]

The difference in the overall amount among the two loans is:

$37,501.76 - $33,093.47 = $4,408.29

Therefore, Tabitha could pay $4,408.29 less for her SUV if she takes the loan for five years in place of 7.

Learn more about Compound interest:-

https://brainly.com/question/30873604

#SPJ4

Find the gross income for selling 348 bushels of apples at 16.50 per bushel

Answers

The gross income for selling 348 bushels of apples at a price of $16.50 per bushel is $5,742.

The gross income is the total revenue earned from the sales of a product or service, before any expenses or deductions are taken out. To calculate gross income, we multiply the quantity of goods sold by the price per unit.

In this case, we are given that 348 bushels of apples were sold at a price of $16.50 per bushel. Multiplying these two values together gives us the total revenue earned from the sale of these apples, which is the gross income.

To calculate the gross income, we can use the formula:

Gross income = Quantity sold x Price per unit

Plugging in the given values, we get:

Gross income = 348 x $16.50

Simplifying the calculation, we get:

Gross income = $5,742

Therefore, the gross income for selling 348 bushels of apples at a price of $16.50 per bushel is $5,742.

To learn more about Gross income refer here:

https://brainly.com/question/547727

#SPJ11

What is the area of triangle hgf? round your answer to the nearest tenth of a square centimeter. recall that you need to
round up if the value of the hundredth is 5 or greater.

Answers

The area of triangle HGF is 9.8 cm²

The Sides of the given triangle are 6.5 cm, 3.6 cm and 5.6 cm

We know that the area of the triangle is the half of product of base and height of the triangle.

The base of the triangle = 6.5 cm

Height of the triangle = 3.0 cm

We know that the triangle is

Area = 1/2 × base × height

= 1/2 × HF × GE

= 1/2 × 6.5 × 3.0

= 1/2 × 19.5

= 9.75

Rounding to the nearest tenth

= 9.8 cm²

Hence, the area of triangle HGF is 9.8 cm²

Learn more about area of triangle here

https://brainly.com/question/29156501

#SPJ4

Given question is incomplete, the complete question is below

What is the area of triangle HGF? Round your answer to the nearest tenth of a square centimeter. Recall that you need to round up if the value of the hundredth is 5 or greater.

Question content area top
Part 1
A riverboat travels 69 km downstream in 3 hours. It travels 76 km upstream in 4 hours. Find the speed of the boat and the speed of the stream.

Answers

The speed of the boat is 21 km/h and the speed of the stream is 2 km/h.

Qn in attachment
.
..​

Answers

Answer: d

Step-by-step explanation:

Answer:

pls mrk me brainliest

Step-by-step explanation:

(⁠ ̄⁠(⁠エ⁠)⁠ ̄⁠)⁠ノ

You are shopping for a King & Queen size mattress, each of which are shaped like a rectangle. The Queen is 16 inches longer than it is wide. The King is 20 inches wider than the Queen, but has the same length. The area of the King-sized mattress is 1,600 in² larger than the Queen. Find the Area of both mattresses

Answers

The area of the King-sized mattress is 4,800 square inches and the area of the Queen-sized mattress is 3,200 square inches.

To find the dimensions of the Queen-sized mattress, let x be the width. Then, the length of the mattress is x + 16. The area of the Queen-sized mattress is x(x + 16) = x² + 16x.

Since the King-sized mattress has the same length as the Queen-sized mattress, its length is x + 16. Also, its width is 20 inches wider than the Queen-sized mattress, so its width is x + 16 + 20 = x + 36. Therefore, the area of the King-sized mattress is (x + 16)(x + 36) = x² + 52x + 576.

The area of the King-sized mattress is 1,600 square inches larger than the area of the Queen-sized mattress. So, we can set up the following equation:

x² + 52x + 576 - (x² + 16x) = 1600

Simplifying this equation, we get:

36x + 576 = 1600

36x = 1024

x = 28

Therefore, the width of the Queen-sized mattress is 28 inches and the length is 44 inches. So, its area is 3,200 square inches.

The width of the King-sized mattress is 28 + 36 = 64 inches and the length is 44 inches. So, its area is 4,800 square inches.

To know more about Area, refer here:

https://brainly.com/question/27683633#

#SPJ11

What is the diameter of a sphere with a volume of
7483
m
3
,
7483 m
3
, to the nearest tenth of a meter?

Answers

The diameter of the sphere is approximately 20 meters to the nearest tenth of a meter.

The volume of a sphere is given by the formula V = (4/3)πr^3, where r is the radius of the sphere. Since we are given the volume of the sphere, we can solve for the radius as follows:

V = (4/3)π[tex]r^{3}[/tex]

[tex]r^{3}[/tex] = (3V) / (4π)

r = [tex](3V/4\pi )^{1/3}[/tex]

Substituting the given value of the volume, we get:

r = [tex](3*7483/4\pi )^{1/3}[/tex] ≈ 10.0

Therefore, the radius of the sphere is approximately 10 meters. The diameter of the sphere is twice the radius, so the diameter is approximately:

2 x 10 ≈ 20 meters

To learn more about diameter here:

https://brainly.com/question/27933834

#SPJ4

You're at a clothing store that dyes your clothes while you wait. The store offers
4 different articles of clothing and
3 colors.
If you randomly choose the article of clothing and the color, which of these diagrams can be used to find all of the possible outcomes?

Answers

The probability of randomly selecting an orange hat is 1/12 or 0.0833.

What is the probability of randomly selecting an orange hat?

In the sample, there are total of 4 pieces of clothing and 3 colors.

The possible outcomes is:

= 4 x 3

= 12

So, the outcomes when randomly selecting a piece of clothing and a color is 12.

From 12 possible outcomes, there is only one outcome where you end up with an orange hat.

So, the probability of randomly selecting an orange hat is:

= 1/12

= 0.0833.

Correct question "You're at a clothing store that dyes your clothes while you wait. You get to pick from 4 pieces of clothing (shirt, pants, socks, or hat) and 3 colors (purple, blue, or orange). If you randomly pick the piece of clothing and the color, what is the probability that you'll end up with an orange hat?"

Read more about probability

brainly.com/question/23044118

#SPJ1

3. the sketch shows three adjacent angles. please write an equation that can be
used to determine the value of y?
28
36
please help

Answers

The value of y is 116°.

Three given Adjacent angles are 28°, 36° and y°.

When two angles are adjacent, they have a common side between them and share a common vertex where the two sides meet. The angles are said to be adjacent because they are next to each other.

We know that if a ray stands on a straight line, then the sum of adjacent angles is 180°.

So, 28° + y° + 36° = 180°

y° + 64° = 180°

Subtracting 64° from both sides.

y°- 64° = 180° - 64°

y° = 116°

Hence, the value of y is 116°.

Learn more about Adjacent angles here

brainly.com/question/29211590

#SPJ4

Five students are going to volunteer at a food pantry tomorrow. Each student will be assigned to either the morning shift or the afternoon shift, but not both. Each shift must be covered by at least two of the five students. How many different ways can the five students be assigned?



I'll put branliest to first person

Answers

There are 20 different ways to assign five students to cover the morning and afternoon shifts at the food pantry.

How many different methods to assign 5 students?

There are different methods to solve this problem, but one possible way is to use a combination of counting techniques.

Since there are two shifts (morning and afternoon) and each shift must be covered by at least two students, there are two cases to consider:

Case 1: Two students cover the morning shift, and three students cover the afternoon shift.

Case 2: Three students cover the morning shift, and two students cover the afternoon shift.

For Case 1, we can choose two students out of five for the morning shift in C(5,2) = 10 ways, and the remaining three students will cover the afternoon shift. For each of the 10 ways of selecting the morning shift, we can choose three students out of the remaining three for the afternoon shift in C(3,3) = 1 way (since there are only three students left). Therefore, there are 10 x 1 = 10 ways to assign the students for Case 1.

For Case 2, we can choose three students out of five for the morning shift in C(5,3) = 10 ways, and the remaining two students will cover the afternoon shift. For each of the 10 ways of selecting the morning shift, we can choose two students out of the remaining two for the afternoon shift in C(2,2) = 1 way (since there are only two students left). Therefore, there are 10 x 1 = 10 ways to assign the students for Case 2.

The total number of ways to assign the students is the sum of the ways for Case 1 and Case 2, which is 10 + 10 = 20 ways.

Therefore, there are 20 different ways to assign the five students to cover the morning and afternoon shifts at the food pantry.

Learn more about different methods

brainly.com/question/15001879

#SPJ11

This mysterious hand went to the mall and saw a massage chair


that he would have to take a loan out to purchase. The total of the


loan was $6600. The bank said that he could get a simple interest


rate of 8% for 5 years. What is the total amount that the mysterious


hand will pay for the chair?

Answers

Since the loan is at a simple interest rate of 8% for 5 years, the total amount that the mysterious hand will pay is:

Total amount = Principal + Interest

where Principal is the initial amount of the loan, and Interest is the amount of interest charged on the loan.

The interest charged on the loan can be calculated using the simple interest formula:

Interest = Principal x Rate x Time

where Rate is the interest rate per year, and Time is the time period in years.

Plugging in the given values, we get:

Interest = 6600 x 0.08 x 5 = 2640

So the total amount that the mysterious hand will pay is:

Total amount = 6600 + 2640 = 9240

Therefore, the total amount that the mysterious hand will pay for the massage chair is $9,240.

To know more about simple interest refer here

https://brainly.com/question/30824126#

#SPJ11

Prove that 5 to the power of 7 plus 5 to the power of 6 is divisible by 6

Answers

To prove that 5^7 + 5^6 is divisible by 6, we can factor out the common term 5^6 and apply the divisibility rule for 6. Here's the solution:

1. Factor out the common term 5^6:
5^7 + 5^6 = 5^6(5 + 1) = 5^6 * 6

2. Apply the divisibility rule for 6:
A number is divisible by 6 if it is divisible by both 2 and 3. Since 6 is already a multiple of 6 (6*1), the expression 5^6 * 6 is divisible by 6.

Thus, we have proved that 5^7 + 5^6 is divisible by 6.

To learn more about expression, refer below:

https://brainly.com/question/14083225

#SPJ11

Which statement completes the following



A. Consecutive interior angles

B. Alternate interior angles

C. Corresponding angles

D. Alternate exterior angles

Answers

The ∠ ABE and ∠HCD are alternate exterior angle.option(D) is correct.

What is alternate exterior angle?

An alternate exterior angle is an angle formed by a pair of lines and a transversal, such that the angle is located on the outside of the two lines, and on the opposite side of the transversal. More specifically, if line AB is intersected by transversal CD at point E, and angles 1 and 2 are formed as shown in the diagram below, then angle 1 and angle 2 are alternate exterior angles:

Alternate exterior angles are congruent if the two intersected lines are parallel. This means that the measure of angle 1 is equal to the measure of angle 2.

So, ∠ ABE and ∠HCD are alternate exterior angle.option(D) is correct.

To know more about angles visit:

brainly.com/question/14569348

#SPJ1

can someone help me solve -2√180u²v

Answers

Answer:-12 with the weird checkmark symbol then a five inside the checkmark symbol times u squared v

Step-by-step explanation:

The value of a car is worth 40,000, and it declines by 3% every year. Which function best represents the the value of the hybrid car.


40000(0. 03)^t


40000(1. 03)^t

Answers

The function best represent the value of hybrid car that is worth 40000 and it declines by 3% every year is  [tex]40,000(0.97)^{t}[/tex]

The value of the car = 40,000

The value of car declines at the rate of 3% every year

function is represented as F(t)

F(t) = [tex]P( 1 - \frac{R}{100} )^{t}[/tex]

P is principal amount value of the car which is 40,000

R is rate at which it declines every year which is 3%

t is no. of year

Putting all the values in the equation we get

F(t) = [tex]40000(1-\frac{3}{100} )^{t}[/tex]

F(t) = [tex]40000(\frac{97}{100}) ^{t}[/tex]

F(t) = [tex]40000(0.97)^{t}[/tex]

The function represent the value of the hybrid car is [tex]40000(0.97)^{t}[/tex] .

To know more about function click here :

https://brainly.com/question/12431044

#SPJ4

2. Container P contains 800 ml of solution. 0.4 of the solution in container Q is poured into container P. Then,3/8 of the solution in the container P is poured into an empty container R. If the container R contains 540 ml of solution now, find the initial volume, in litres, of the solution in container Q. ​

Answers

The initial volume of the solution in container Q is 1.6 liters.

Let's first discover how a lot solution was poured from container Q into container P:

0.4 x volume of solution in container Q = 0.4Q

the total volume of solution in container P after this transfer is:

800 ml + 0.4Q ml

Subsequent, 3/8 of this overall volume in container P is poured into container R:

(3/eight) x (800 ml + 0.4Q ml) = 300 ml + 0.15Q ml

We recognise that field R includes 540 ml of solution now, so we are able to set up an equation:

300 ml + 0.15Q ml = 540 ml

Solving for Q, we get:

0.15Q ml = 240 ml

Q = 1600 ml

Consequently, the initial volume of the solution in container Q is 1.6 liters.

Learn more about initial volume:-

https://brainly.com/question/31505379

#SPJ1

For the function f(x) = x^2e^7x find the critical numbers and use the First Derivative Test to find the local
maximum and minimum values and where they occur. Enter exact answers in fraction form.

Answers

For the function f(x) = x^2e^7x the critical numbers are 0 and -2/7 and using the First Derivative Test local minima at x = 0 and -2/7.

The function f(x) = x²e⁷ˣ

Differentiate the function f(x) with respect to x

f'(x) = 2xe⁷ˣ + 7x²e⁷ˣ

f'(x) = xe⁷ˣ(2 + 7x)

Now put f'(x) = 0 for critical points.

xe⁷ˣ(2 + 7x) = 0

x = 0                 2 + 7x = 0              e⁷ˣ ≠ 0

x = 0                 x = -2/7                e⁷ˣ ≠ 0

Hence, 0 and -2/7 are the critical points.

f'(x) = 2xe⁷ˣ + 14x²e⁷ˣ

Now f''(x) = 2e⁷ˣ + 14xe⁷ˣ + 28xe⁷ˣ + 98x²e⁷ˣ

f''(x) = 2e⁷ˣ + 42xe⁷ˣ + 98x²e⁷ˣ

f''(x) = 2e⁷ˣ(1 + 21x + 49x²)

Now f''(x) at x = 0

f''(0) = 2e⁷⁽⁰⁾(1 + 21(0) + 49(0)²)

f''(0) = 2(1 + 0 + 0)

f''(0) = 2 > 0

So f(x) has minima at x = 0

Local minima at x = 0 and y = 0.

Now f''(x) at x = -2/7

f''(0) = 2e⁻²(1 + 21(-2/7) + 49(-2/7)²)

f''(0) = 2e⁻²(1 - 6 + 4)

f''(0) = -2e⁻² < 0

f(x) has local minima at x = -2/7

Now y at x = -2/7 is

y = f(-2/7)

y = (-2/7)² e⁻²

y = 4/49e²

To learn more about critical points link is here

brainly.com/question/31017064

#SPJ4

Alex brough a cell phone for $200 using money from his saving account he is replacing the money in his saving account at he rate of $8 per weeks he already has replaced $80 how many more weeks does alex will he have to put money in his saving account in order to replace the entire amount

Answers

Alex will have to put money in his savings account for 15 more weeks at a rate of $8 per week.

How to maintain budget on purchasing cell phone?

Alex purchased a cell phone for $200 using money from his savings account. He plans to replace the money in his savings account at the rate of $8 per week. He has already replaced $80, which means he needs to replace $120 more to have the entire amount. Since he is replacing the money at a rate of $8 per week, he will need 15 more weeks to replace the remaining amount. Therefore, he will have to put money in his savings account for 15 more weeks to replace the entire $200 he spent on the cell phone. By doing so, he will be able to maintain his savings and avoid any financial loss.

Learn more about cell phone

brainly.com/question/27466480

#SPJ11

LT 18.1
The radius of Circle A below is 11 millimeters and the measure of < BAC is 60°.

What is the length of Arc BC, to the nearest millimeter?

A. 12 mm
B. 24 mm
C. 6 mm
D. 3 mm

Answers

[tex]\textit{arc's length}\\\\ s = \cfrac{\theta \pi r}{180} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=11\\ \theta =60 \end{cases}\implies s=\cfrac{(60)\pi (11)}{180}\implies s=\cfrac{11\pi }{3}\implies s\approx 12~mm[/tex]

Answer: 12mm

Step-by-step explanation:

Basically, you will find the circumference of the entire circle and then using that find the length of the arc.

So the circumference of the circle is its radius (11) times pi multiplied by 2.

2(11 x 3.14) = 69.08

Now a circle is always 360 degrees and the angle of the sector is 60 degrees.

So we have our circumference and we only need that small portion, so you take and make it a fraction and multiply by the circumference to find the length of that small portion:

60/360 x 69.08 = 11.51

Rounded = 12

Find an exponential function that passes through (2,8) and (4,128)

Answers

The final exponential function using the values of 'a' and 'b':
y = (1/2)(4^x)

To find an exponential function that passes through the points (2,8) and (4,128), follow these steps:

Step 1: Recall the general form of an exponential function: y = ab^x
Here, 'a' and 'b' are constants that need to be determined using the given points.

Step 2: Substitute the first point (2,8) into the equation:
8 = ab^2

Step 3: Substitute the second point (4,128) into the equation:
128 = ab^4

Step 4: Divide the second equation by the first equation to eliminate 'a':
(128 = ab^4) / (8 = ab^2)
16 = b^2

Step 5: Solve for 'b':
b = √16
b = 4

Step 6: Substitute the value of 'b' back into the first equation:
8 = a(4^2)

Step 7: Solve for 'a':
8 = 16a
a = 8/16
a = 1/2

Step 8: Write the final exponential function using the values of 'a' and 'b':
y = (1/2)(4^x)

To learn more about Exponential function

https://brainly.com/question/30127596

#SPJ11

Make a number line and mark all the points that represent the following values of x. X < -1 and x > 1​

Answers

To make a number line for the values of x that are less than -1 and greater than 1, we can start by drawing a horizontal line and marking a point at 0. Then, we can label the left side of the line with negative numbers and the right side with positive numbers.

Next, we need to mark all the points that represent the values of x that satisfy the condition X < -1 and x > 1. This means we are looking for all the numbers that are less than -1 and greater than 1 at the same time. However, there are no numbers that satisfy this condition since a number cannot be both less than -1 and greater than 1 simultaneously.

Therefore, there are no points to mark on the number line for this condition.

To know more about number line:

https://brainly.com/question/24644930

#SPJ11

7. Membership at the local Sky Zone costs $189 per year and an hour costs $15 each.
Write an expression (make sure it looks like an expression, not an equation) to
represent the total cost of going to Sky Zone for the year. Evaluate the expression
(make it an equation) if you jump for 19 hours in a year. Write a "therefore"
statement. (4 marks)

Answers

189*365=68985

68985/15= $4599

Step-by-step explanation:

or $5000 if you round up

what are 2, 3, and 4

Answers

1. The area of square C is 625 ft². 2. The perimeter of square C is 46 ft. 3. The area of square B is 1456 ft². 4. The length of square A is 4√15 ft.

What is Pythagoras theorem?

A key idea in geometry that connects the lengths of a right triangle's sides is known as the Pythagorean Theorem. It says that the hypotenuse's square length, which is the side that faces the right angle, is equal to the sum of the squares of the lengths of the other two sides in a right triangle. It has the following mathematical expression:

a² + b² = c²

1. The area of square C can be found using the Pythagorean Theorem:

a² + b² = c²

Using the area the side is calculates as follows:

Side length of A = √225 = 15 ft

Side length of B = √400 = 20 ft

Now,

15² + 20² = c²

225 + 400 = c²

625 = c²

c = √625 = 25 ft

So the area of square C is:

Area of C = 25² = 625 ft²

2. The perimeter of square C can be found by adding up the side lengths of all three squares:

Perimeter of A = 36 ft, so each side length of A is 9 ft.

Perimeter of B = 48 ft, so each side length of B is 12 ft.

Perimeter of C = Side length of A + Side length of B + Side length of C

Perimeter of C = 9 + 12 + c

We found earlier that c = 25 ft, so we can substitute that in:

Perimeter of C = 9 + 12 + 25 = 46 ft

3. The area of square B can be found using the fact that the areas of squares A, B, and C are related by the equation:

Area of A + Area of B = Area of C

We know the area of A and the area of C, so we can solve for the area of B:

Area of A = 15² = 225 ft²

Area of C = 1681 ft²

Area of A + Area of B = Area of C

225 + Area of B = 1681

Area of B = 1456 ft²

4. Perimeter of B = 64 ft

Side length of B = 64 / 4 = 16 ft

Now we can use the Pythagorean Theorem to find the side length of C:

a² + b² = c²

a = 15 ft (side length of A)

b = 16 ft (side length of B)

c = √(a² + b²) = √(15² + 16²) = √481 = 22 ft

Finally, we can use the Pythagorean Theorem again to find the side length of A:

a² + b² = c²

b = 16 ft (side length of B)

c = 22 ft (side length of C)

a = √(c² - b²) = √(22² - 16²) = √240 = 4√15 ft

Learn more about Pythagoras Theorem here:

https://brainly.com/question/343682

#SPJ1

how do i find the inverse

Answers

Step-by-step explanation:

To solve for inverse, utilize the following steps.

Step 1: let f(x)=y so we get

[tex]y = \sqrt{x - 6} + 5[/tex]

Step 2: Swap y and x

[tex]x = \sqrt{y - 6} + 5[/tex]

Solve for y.

[tex]x - 5 = \sqrt{y - 6} [/tex]

[tex](x - 5) { }^{2} + 6 = y[/tex]

Step 4: Let y =f^-1(x)

[tex](x - 5) {}^{2} + 6 = f {}^{ - 1} (x)[/tex]

Answer: [tex]f^{-1}(x) =[/tex] x²-10x+19

Step-by-step explanation:

Let's replace f(x) for y for now.

[tex]y=\sqrt{x-6}+5[/tex]

To find inverse.  make your y into x, and your x into y

[tex]x=\sqrt{y-6}+5[/tex]        >Now you solve for y.  subtract 5 from both sides

[tex]x-5=\sqrt{y-6}[/tex]        >Square both sides to get rid of root

[tex](x-5)^{2} =(\sqrt{y-6})^{2}[/tex]     >drop root and square (x-5)

(x-5)(x-5) = y-6              >FOIL

x²-5x-5x+25 = y-6        > combine like terms

x²-10x+25 = y-6            >add 6 to both sides

x²-10x+19=y            > this is your inverse now put the y into inverse form

[tex]f^{-1}(x) =[/tex] x²-10x+19

Other Questions
If you have a fish please help1. mr. jones has an established aquarium in his home. the water level is low, and he is complaining that something may be wrong with his tank. what important piece of equipment, neglected by mr. jones, might resolve the situation?2. how would you explain to little sunny day why a large fish that looks like the "rainbow fish" should not be placed in her new aquarium as soon as it is set up?3. mrs. mccleary's 5-gallon tank has three fish. she wants to add ten guppies. what is your advice?4. mr. march is concerned about the build-up of algae in his tank. what is your recommendation?5. your turn: create a simple handbook for new fish owners that includes recommended equipment, supplies, and practices to follow for the first few weeks. Question Two Ted has just returned to his job in the Finance Department of Zwane Company, having spent the last six months as a member of a project team working on the development of an Educational Visitors Centre for the company Reflecting on his experiences whilst working on the project, he feels that most of his time was spent in meetings that did not achieve anything, but rather wasted his time. He also feels that the final stages of the project were not dealt with effectively, with the project members going back to their functional jobs without any discussion or feedback on the project performance and outcomes. He has now been asked to take on the role of project manager for a new project and is determined that he will improve the experience for his project team. Required: (a) Discuss the problems that may be associated with project meetings. Make recommendations on the methods Ted could use to ensure the meetings he arranges as project manager, are effective. A cube is cut into two pieces by a single slice that passes through the points A, B, and C. What shape is the cross section. 1. Rectangle2. Triangle3. Square4. Trapezoid You wish to determine the effectiveness of taking omega-3 tablets to lower a persons cholesterol. To determine this, you collect data on the cholesterol level of 50 individuals before and after a 6-week course of omega-3 tablets. Which test would determine if this treatment was effective?. Which answer best describes what is happening in the following reaction?2C8H18 + 25O2 Right arrow. 16CO2 + 18H2O A and b verify that they possess a common key k, using a public one-wayfunction h, as follows:1. a sends h(h(k)) to b2. b verifies that the received value is correct3. b sends h(k) to a4. a verifies that the received value is correct The alpha decay of what isotope of what element produces lead-206?. Choose the part of the given sentence which has an error despite of the problem he faced, he enjoyed his journey I Need help with these please answer someone omg Critical thinking choosing a major solutions choose the major the most interesting 11.If the fume generation rate of a FCAW wire is assumed to be 1 g/min ( grams per minute), calculate the weight of fumes produced by one welder working for one year operation. Assume working duty cycle based on the data given in the class to calculate your answer for semiautomatic processes the number of thunderstorms in indiana in a calendar month is normally distributed with a mean of 75, and a standard deviation is 20 . single month is randomly selected. find the probability that the number of thunderstorms in that month is greater than 85. sample of ten months is selected. find the probability that the mean number of thunderstorms per month in this sample is greater than 85. whats an example of a compare and contrast thesis statement? (if you can make it about chick-fil-a and mcdonalds id appreciate it) 7. the diagram below represents a circuit consisting of two resistors connected to a source of potential difference. what is the current through the 20.-ohm resistor? 12. [0/1 Points] DETAILS PREVIOUS ANSWERS LARCALC9 11.7. Convert the point from rectangular coordinates to spherical coordinates. (7,7, 2/7) (0, 0, 4) = ( 3V 14, 7,61.87 ). x Submit Answer Remy corporation sold 5,300 units of its product at a price of $25 per unit. total variable cost per unit is $17.50, consisting of $16.60 in variable cost of goods sold and $0.90 in variable selling and administrative cost. compute the contribution margin for the company. Assuming the precision, P, with which this electromagnetic radiation can shape the cornea is inversely proportional to wavelength (the shorter the wavelength, the higher the precision), how much more precise can this ultraviolet light be than the shortest wavelength of visible light, which is 380 nm Read the poem "Doggy Heaven".All doggies go to heaven (or so I've been told).They run and play along the streets of Gold.Why is heaven such a doggie-delight?Why, because there's not a single cat in sight!What is the mood of this poem?O solemn/seriousO sillyO boredO hopeful The table below shows primary school enrollment for a certain country. Here, x represents the number of years after 1820, and y represents the enrollment percentage. Use Excel to find the best fit linear regression equation. Round the slope and intercept to two decimal places.x y0 0.15 0.110 0.115 0.220 0.225 0.330 0.435 0.540 0.645 1.150 1.555 3.060 4.565 5.570 6.175 6.880 7.085 8.090 9.395 10.7100 12.4105 14.1110 16.6115 17.5120 19.7125 19.4130 32.7135 40.9140 47.6145 57.8150 57.0155 61.7160 63.2165 75.0170 76.5175 96.0180 92.0185 100.0190 100.0 the long snout of the giant anteater, myrmecophaga tridactyla, of south america, and the echidna, tachyglossus aculeatus, of australia, are animals of different evolutionary lineages that are both adapted to eating ants. this is an example of multiple choice selective breeding. anatomical homology. convergent evolution. artificial selection. heterologous traits.