1 ) If the supplement of an angle is 30 degrees more than the measure of the angle, what is the measure of the angle?

2) If the supplement of an angle is 12 degrees less than twice the measure of the angle, what is the measure of the angle?

Answers

Answer 1

a) If the supplement of an angle is 30 degrees more than the measure of the angle, the measure of the angle is 75 degrees.

b) If the supplement of an angle is 12 degrees less than twice the measure of the angle, the measure of the angle is 64 degrees.

a) Let x be the measure of the angle. The supplement of the angle is 180-x. According to the problem, the supplement of the angle is 30 degrees more than the measure of the angle. This can be written as:

180 - x = x + 30

Solving for x, we get:

2x = 150

x = 75

b) Let x be the measure of the angle. The supplement of the angle is 180-x. According to the problem, the supplement of the angle is 12 degrees less than twice the measure of the angle. This can be written as:

180 - x = 2x - 12

Solving for x, we get:

3x = 192

x = 64

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Related Questions

The student council set a goal of raising at least $500 in flower sales. So far it


has raised $415.


Part A


Write an inequality to show how many more dollars, d, the student council needs


to reach its goal.


Answer


Part B


How many solutions does the inequality have? Explain your reasoning by giving


some examples of solutions to the inequality.

Answers

In both cases, the inequality holds true. The inequality is 415 + d ≥ 500.  

Part A:
To write an inequality that represents the situation, we can use the following format: money raised so far + additional money needed ≥ goal. In this case, the money raised so far is $415, and the goal is $500. Let d represent the additional money needed. So the inequality would be:

415 + d ≥ 500

Part B:

The inequality 415 + d ≥ 500 has infinitely many solutions, as there are countless values of d that can satisfy the inequality. This is because as long as the total amount raised is equal to or greater than $500, the student council meets its goal. For example, if d is 85, then the council would exactly meet its goal (415 + 85 = 500). If d is 100, the council would exceed its goal (415 + 100 = 515). In both cases, the inequality holds true.

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The dean of students at a large college is interested in learning about their opinions regarding the percentage of


first-year students who should be given parking privileges in the main lot. He sends out an email survey to all


students about this issue. A large number of first-year students reply but very few sophomores, juniors, and seniors


reply. Based on the responses he receives, he constructs a 90% confidence interval for the true proportion of


students who believe first-year students should be given parking privileges in the main lot to be (0. 71, 0. 79). Which


of the following may have an impact on the confidence interval, but is not accounted for by the margin of error?


O response bias


O nonresponse bias


O sampling variation


O undercoverage bias


Mark this and retum


Save and Exit


Next


Submit

Answers

b. Nonresponse bias creates an impact on the confidence interval, but is not accounted for by the margin of error.

Given that, the dean of students at a large college is interested in learning about the opinions of students regarding the percentage of first-year students who should be given parking privileges in the main lot. He sends out an email survey to all students about this issue, but receives very few responses from sophomores, juniors, and seniors. Based on the responses he receives, he constructs a 90% confidence interval for the true proportion of students who believe first-year students should be given parking privileges in the main lot to be (0.71, 0.79).

Response bias refers to a systematic pattern of incorrect responses in a survey, which can be caused by factors such as question wording, social desirability bias, or interviewer bias.

Nonresponse bias, on the other hand, occurs when individuals who do not respond to a survey are systematically different from those who do respond, leading to a biased estimate of the population parameter.

Sampling variation refers to the fact that different samples from the same population can yield different estimates of the population parameter due to random variation.

Under coverage bias occurs when some members of the population are systematically excluded from the sample, leading to a biased estimate of the population parameter.

In this scenario, the fact that very few sophomores, juniors, and seniors responded to the survey could potentially introduce nonresponse bias, since those who did respond may not be representative of the entire population of students.

However, the confidence interval itself does not account for nonresponse bias or any other sources of bias. Instead, it reflects the range of values that is likely to contain the true proportion of students who believe first-year students should be given parking privileges in the main lot, based on the data that was collected.

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What is the solution to the equation log(4x + 4) = 2 ? show your work

Answers

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x = −1/2

Decimal Form:

x = −0.5

Step-by-step explanation:

Answer:

x = 24

Step-by-step explanation:

using the rule of logarithms

[tex]log_{b}[/tex] x = n ⇒ x = [tex]b^{n}[/tex]

note that log x represents [tex]log_{10}[/tex] x

given

log(4x + 4) = 2 , then

4x + 4 = 10² = 100 ( subtract 4 from both sides )

4x = 96 ( divide both sides by 4 )

x = 24

A company has 14 employees at the cental, 8 employees at the north and 6 employees at the south. They want to lay off 12 employees. In how many ways can this be done?

Answers

Here are 98,280 ways to lay off 12 employees from the company.

What is combination?

In mathematics, a combination is a way of selecting objects from a set, where the order in which the objects are selected does not matter. Combinations are used in various areas of mathematics and statistics, as well as in real-world applications such as probability theory, genetics, and computer science.

We can solve this problem using combinations. We need to choose 12 employees out of a total of 14+8+6=28 employees. The number of ways to do this is:

[tex]{28 \choose 12} \\= \frac{28!}{12!16!} = 98,!280[/tex]

Therefore, there are 98,280 ways to lay off 12 employees from the company.

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Use the diagram to complete the statement.
BC =

Answers

The measurement of BC in the given figure is 4√2.

Given is figure we need to find the measurement of BC,

∠GBC = ∠CDF = 45° [alternate angles]

So, in triangle DCF,

Cos 45° = DF/DC

1/√2 = DF/12√2

DF = 12

Now we see that the triangles DCF and BCG are similar triangles by AA rule,

So, according to the definition of similar triangles,

DC/BC = DF/BG

12√2/BC = 12/(7-3)

12√2/BC = 12/4

12√2/BC = 3

3BC = 12√2

BC = 4√2

Alternatively, you can find the value of BC, using the trigonometric ratios in triangle GBC,

Cos 45° = GB/BC

GB = 7-3 = 4

Therefore,

Cos 45° = 4/BC

1/√2 = 4/BC

BC = 4√2

Hence the measurement of BC in the given figure is 4√2.

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Determine the distance between the points (−3, −6) and (5, 0).

Answers

The distance between the points (-3, -6) and (5, 0) is 10 units.

What is the Pythagorean theorem?

Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle.

To determine the distance between two points in a coordinate plane, you can use the distance formula, which is derived from the Pythagorean theorem.

The distance formula for two points (x₁, y₁) and (x₂, y₂) in a coordinate plane is:

Distance = √{(x₂ - x₁)² + (y₂ - y₁)²}

Given the two points (-3, -6) and (5, 0), we can plug in the values into the distance formula as follows:

x₁ = -3, y₁ = -6 (coordinates of the first point)

x₂ = 5, y₂ = 0 (coordinates of the second point)

Distance = √{(x₂ - x₁)² + (y₂ - y₁)²}

= √{(8)² + (6)²}

= √{(64) + (36)

= √100

= 10

Hence, the distance between the points (-3, -6) and (5, 0) is 10 units.

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The length of the sides of 3 square are s, s+1 and s+2. find the total perimeter of their total area is 245 square units.

Answers

The side lengths of the three squares are 8, 9, and 10, and the total perimeter is 27 units.

How to find  the total area of the squares?

Let's call the side length and perimeter of the first square "s", the second square "s+1", and the third square "s+2".

The area of a square is given by the formula A =[tex]s^2[/tex], where A is the area and s is the side length.

So the total area of the three squares is:

A_total =[tex]s^2[/tex] + (s+1[tex])^2[/tex] + (s+2[tex])^2[/tex]

We are given that the total area is 245 square units:

A_total = 245

Substituting this into our expression for A_total, we get:

245 =[tex]s^2[/tex] + (s+1[tex])^2[/tex] + (s+2[tex])^2[/tex]

Expanding the squares, we get:

245 = 3[tex]s^2[/tex]+ 6s + 5

Simplifying, we get a quadratic equation:

3[tex]s^2[/tex]+ 6s - 240 = 0

Dividing by 3, we get:

[tex]s^2[/tex] + 2s - 80 = 0

We can factor this quadratic as:

(s+10)(s-8) = 0

So s = -10 or s = 8. Since s must be positive (it represents a side length), we have:

s = 8

Therefore, the side lengths of the three squares are 8, 9, and 10.

The total perimeter is the sum of the side lengths of the three squares:

P_total = s + (s+1) + (s+2)

P_total = 8 + 9 + 10

P_total = 27

Therefore, the total perimeter is 27 units.

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Can someone help me fast!?!?
Trying to get better at these word problems will help a lot.

Sharon is a new store manager. She can spend $750 a day for operating costs and payroll. It costs $75 each day to operate the store and $25 a day for each employee. Use the following inequality to determine, at most, how many employees Sharon can afford for the day.
A. x ≥ 27
B. x ≥ 33
C. x ≤ 33
D. x ≤ 27

Answers

Answer:

D

Step-by-step explanation:

25x+75=750

25x=675

x=27

we can't go over this amount, but we can have 27 employees, so it will be equal as well.

x<27 and x=27

Claire flips a coin 4 times. Using the table, what is the probability that the coin will show tails at least once?


2.


Number of Tails


Probability


0


0. 06


1


0. 25


3


0. 25


4


0. 06


?


O 0. 06


O 0. 25


0. 69


O 0. 94


Mark this and return


Save and Exit


Next


Sunmit

Answers

The probability that the coin will show tails at least once is 0.56.

To find the probability that the coin will show tails at least once, you can sum the probabilities of getting 1, 3, or 4 tails, as shown in the table:

Probability of 1 tail: 0.25
Probability of 3 tails: 0.25
Probability of 4 tails: 0.06

Now, add these probabilities together:

0.25 + 0.25 + 0.06 = 0.56

So, the probability that the coin will show tails at least once is 0.56.

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Write the product using exponents.

4⋅4⋅4⋅4⋅4

Answers

4^5 is the answer with a final product 1024 due to 4 being multiplied 5 times.

HELP


7. If PQRS is a square and TR = 17, find each missing value.

Answers

Each side of the square has a length of approximately 12.02.

Find out the missing values of a square?

Without additional information or a diagram, it is difficult to determine what values are missing. However, we can use the Pythagorean theorem to solve for the length of the sides of the square.

Let's assume that TR is a diagonal of the square, and let x be the length of each side. Then, by the Pythagorean theorem,

TR^2 = x^2 + x^2

17^2 = 2x^2

289 = 2x^2

x^2 = 144.5

x ≈ 12.02

We can also solve this as:

Assuming that PQRS is square and TR is a diagonal of the square, we can use the Pythagorean theorem to find the length of each side of the square. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

In this case, if we draw a diagonal TR in the square, it divides the square into two right triangles, each with sides of length x (the length of one side of the square) and TR/√2 (half the diagonal). Applying the Pythagorean theorem to one of these right triangles, we get:

(x)^2 + (TR/√2)^2 = TR^2

Simplifying and solving for x, we get:

x = √(TR^2 - (TR/√2)^2) = TR/√2 = TR * √2 / 2

Plugging in TR = 17, we get:

x = 17 * √2 / 2 ≈ 12.02

Therefore, each side of the square has a length of approximately 12.02. Without additional information or a diagram, we cannot determine any other missing values.

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please help me
a gift box is in the shape of a trapezoidal prism with base lengths of 7in by 5in by 4in the height of the gift box is 8in what is the volume?????

Answers

The volume of the trapezoidal prism is 192 in³

What is volume of a prism?

A prism is a solid shape that is bound on all its sides by plane faces.

The volume of a prism is expressed as;

V = base area × height

The base of the prism is a trapezoid

area of trapezoid = 1/2(a+b)h

A = 1/2( 7+5) 4

A = 1/2 × 12 × 4

A = 12 × 2

A = 24 in²

Therefore the volume of the prism is

V = 24 × 8

V =192 in³

Therefore the volume of the trapezoidal prism is 192 in³

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help please
Use substitution to find the indefinite integral. x² - 2x 3 X - S dx x4 - 4x + 4 - X x - 2x 4 - 4x + 4 dx=

Answers

To solve this problem, we can use substitution. Let's set u = x-2. Then, du/dx = 1 and dx = du. Using this substitution, we can rewrite the integral as:

∫ (u+2)² - 2(u+2) 3 (u+2) - Su du
Expanding the terms inside the integral, we get:
∫ (u² + 4u + 4) - 2(u+2)³ (u+2) - Su du
Simplifying, we get:


∫ u⁴ - 4u³ + 4u² - u³ + 6u² - 12u - u² + 6u - 9 du
Combining like terms, we get:
∫ u⁴ - 5u³ + 9u² - 6u - 9 du
Now, we can integrate each term separately using the power rule of integration:
∫ u⁴ - 5u³ + 9u² - 6u - 9 du = (1/5)u⁵ - (5/4)u⁴ + (9/3)u³ - 3u² - 9u + C
Substituting back u = x-2, we get:
(1/5)(x-2)⁵ - (5/4)(x-2)⁴ + (3)x³ - 3(x-2)² - 9(x-2) + C
Therefore, the indefinite integral of x² - 2x 3 X - S dx x⁴ - 4x + 4 - X x - 2x⁴ - 4x + 4 dx is (1/5)(x-2)⁵ - (5/4)(x-2)⁴ + (3)x³ - 3(x-2)² - 9(x-2) + C.
Hi! I'd be happy to help you with your integration problem. To find the indefinite integral using substitution, let's first rewrite the given integral:
∫(x² - 2x) / (x⁴ - 4x² + 4) dx



Now, let's perform substitution:
Let u = x² - 2x
Then, du/dx = 2x - 2
And also let v = x⁴ - 4x² + 4
Then, dv/dx = 4x³ - 8x
We need to find du in terms of dx, so:
du = (2x - 2) dx
Now, we can rewrite the integral in terms of u and v:
∫(u) / (v) (du / (2x - 2))
Now we can integrate:
(1/2) ∫(u) / (v) du



Unfortunately, this integral does not have a straightforward elementary antiderivative. However, you can use numerical integration methods or special functions to approximate the indefinite integral if necessary.

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"Bacteria in a culture can live for an average of two hours with a standard deviation of 15


minutes. How long can we expect at least 75% of the bacteria to live?"

Answers

75% of the bacteria to live for approximately 130.11 minutes


To answer your question, we'll be using the concept of standard deviation and the normal distribution.

Given that the average lifespan of bacteria in a culture is 2 hours (120 minutes) with a standard deviation of 15 minutes, we can expect at least 75% of the bacteria to live for a certain amount of time. Using the normal distribution, we can determine the corresponding z-score for the 75th percentile, which is approximately 0.674.

Now, we can apply the z-score formula:
z = (X - mean) / standard deviation

Rearrange the formula to solve for X (the time at which 75% of the bacteria will live):
X = mean + (z * standard deviation)

Plugging in the given values:
X = 120 + (0.674 * 15) ≈ 130.11 minutes

So, we can expect at least 75% of the bacteria to live for approximately 130.11 minutes.

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Four white, one black, and three striped tiles are place on a table. Each time a tile is drawn, it is replaced.


Determine the probability of drawing two striped tiles in a row.


ANSWER FAST PLEASE

Answers

The probability of drawing two striped tiles in a row would be 9/64.

How to find the probability ?

The probability of picking a striped tile with one draw is 3/8, due to the fact that out of the eight existing tiles, three are striped. Simultaneously considering that the tile is replaced following each pick, the likelihood of obtaining another striped tile is still 3/8.

To ascertain the probability of drawing two consecutive striped tiles, we multiply the likelihood of the initial draw being striped (3/8) by the chance of the second draw occurring striped (3/8).

The probability is therefore :

= 3 / 8 x 3 / 8

= 9 / 64

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2x + y = 7
3x - 2y = -7

Answers

Answer: x = 1, y = 5

Step-by-step explanation:

I assume you want to solve this system of linear equations:

from the first one:

2x + y = 7

.: y = 7 - 2x

substituting this for the y in the second equation:

3x - 2(7 - 2x) = -7

3x - 14 + 4x = -7

7x = 7

x = 1

From before we know that y = 7 - 2x

so now that we know x = 1, we can say y = 7 - 2(1) = 5

So x = 1, y = 5

PLS HELP ASAP 50 POINTS AND BRAINLEIST!!!
AC is the diameter of the circle. angle AWB is 120 degrees. How big is arc BC?

Answers

Answer: arc BC is 60

Step-by-step explanation: if AC is the diameter and AWB is 120 degrees,

diameter= half a circle (180)

180-120

=60

hope this helped!! (sorry if its wrong)

Answer:

[tex]\overset\frown{BC}=60^{\circ}[/tex]

Step-by-step explanation:

The diameter of a circle is a straight line that passes through the center of the circle and whose endpoints lie on the circle.

Since angles on a straight line sum to 180°, and AC is the diameter of circle W, then:

[tex]m \angle AWB + m \angle BWC = 180^{\circ}[/tex]

Given the measure of angle AWB is 120°:

[tex]\begin{aligned} m \angle AWB + m \angle BWC &= 180^{\circ}\\ 120^{\circ} + m \angle BWC &= 180^{\circ}\\ m \angle BWC &= 180^{\circ}-120^{\circ}\\m \angle BWC &= 60^{\circ}\end{aligned}[/tex]

The measure of an intercepted arc is equal to the measure of its corresponding central angle. Therefore:

[tex]\overset\frown{BC}=m \angle BWC=60^{\circ}[/tex]

Therefore, the measure of arc BC is 60°.

A. name 3 different angles which could have a reference angle of 20 degrees. how did you arrive at this answer?.

b. what are the characteristics of a reference angle?

c. how is it possible that angles can have different measurements, but still have the exact same reference angle?

Answers

A) The acute angles equivalent to 70 degrees, 110 degrees, and 250 degrees are all 20 degrees.

B) The characteristics of a reference angle is acute and positive.

C) Because reference angle only depends on quadrant.

A. Three different angles which could have a reference angle of 20 degrees are 70 degrees, 110 degrees, and 250 degrees. To arrive at this answer, we need to subtract 20 degrees from 90 degrees, which gives us 70 degrees. To find the other two angles, we add 180 degrees to 70 degrees, which gives us 250 degrees, and we subtract 180 degrees from 110 degrees, which gives us 290 degrees. However, since we're looking for angles with a reference angle of 20 degrees, we have to find the acute angle between 0 and 90 degrees that is equivalent to these angles. So, we subtract 90 degrees from 250 degrees, which gives us 160 degrees, and we subtract 90 degrees from 290 degrees, which gives us 200 degrees. The acute angles equivalent to 70 degrees, 110 degrees, and 250 degrees are all 20 degrees.

B. The characteristics of a reference angle are that it is always an acute angle, it is the smallest angle between the terminal side of the given angle and the x-axis, and it is always positive.

C. Angles can have different measurements but still have the exact same reference angle because the reference angle only depends on the quadrant in which the terminal side of the angle lies. For example, an angle of 50 degrees and an angle of 310 degrees are both in the fourth quadrant and therefore have the same reference angle of 40 degrees. Similarly, an angle of 100 degrees and an angle of 260 degrees are both in the third quadrant and therefore have the same reference angle of 10 degrees.

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Some students were asked how many pens they were carrying in their backpacks. The data is given in this frequency table. What is the mean number of pens carried by these students in their backpacks?

A. 2

B. 3. 5

C. 4

D. 5. 5

Answers

The mean number of pens carried by these students in their backpacks is:

122 / 30 = 4.07 (rounded to two decimal places)

So the answer is closest to option C, which is 4.

What is the mean number of pens carried by students in their backpacks given the following frequency table?

To find the mean number of pens carried by the students, we need to calculate the sum of all the pens and divide by the total number of students. We can use the frequency table to calculate the sum of all the pens as follows:

2 x 3 + 3 x 6 + 4 x 10 + 5 x 8 + 6 x 3 = 6 + 18 + 40 + 40 + 18 = 122

The total number of students is the sum of the frequencies, which is:

3 + 6 + 10 + 8 + 3 = 30

The mean number of pens carried by these students in their backpacks is:

122 / 30 = 4.07 (rounded to two decimal places)

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Which expressions are equivalent to b2c52b−2c12? Select all that apply

Answers

The "equivalent-expression" for the given expression "b²c⁵b¹ - 2c¹b²" is b²c(bc⁴ - 2).

An "Equivalent-Expression" is an expression which has the same-value as the original expression, but may look different. The two expressions are equivalent if they simplify to the same result.

We have to solve the expression : "b²c⁵b¹ - 2c¹b²",

To simplify this expression, we first combine the "like-terms" by adding the exponents of b and c;

= b²c⁵b¹ - 2c¹b²,

Now we add the exponents having the same-base;

= b²⁺¹c⁵ - 2b²c¹;

= b³c⁵ - 2b²c

= b²c(bc⁴ - 2).

Therefore, the required "equivalent-expression" is b²c(bc⁴ - 2).

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The given question is incomplete, the complete question is

Write an equivalent expression for the given expression "b²c⁵b¹ - 2c¹b²".

23


Luke invested £4000 in a savings account for 3 years. So


Compound interest was paid at a rate of 1. 8% each year.


Alexa also invested £4000 in a savings account for 3 years. Si


Simple interest was paid at a rate of 1. 8% each year.


0002


Luke got more interest than Alexa in total over the 3 years.


00025


00021


How much more?

Answers

To calculate the interest earned by Luke and Alexa, we can use the following formulas:

For compound interest:

A = P(1 + r/n)^nt

I = A - P

where:

A = the total amount

P = the principal amount

r = the annual interest rate (as a decimal)

n = the number of times the interest is compounded per year

t = the time period (in years)

I = the interest earned

For simple interest:

I = P*r*t

where:

P = the principal amount

r = the annual interest rate (as a decimal)

t = the time period (in years)

I = the interest earned

Using these formulas, we can calculate the interest earned by Luke and Alexa as follows:

For Luke:

P = £4000

r = 0.018 (1.8% as a decimal)

n = 1 (compounded annually)

t = 3 years

A = 4000(1 + 0.018/1)^(1*3) = £4316.83

I = 4316.83 - 4000 = £316.83

For Alexa:

P = £4000

r = 0.018 (1.8% as a decimal)

t = 3 years

I = 4000*0.018*3 = £216

Therefore, the total interest earned by Luke is £316.83 and the total interest earned by Alexa is £216. The difference between these two amounts is:

316.83 - 216 = £100.83

So Luke earned £100.83 more in interest than Alexa over the 3 years.

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Can someone please help me with this

Answers

It is b just trust me

Draw the image of \triangle ABC△ABCtriangle, A, B, C under a dilation whose center is PPP and scale factor is 333.

Answers

A graph of the image of ABC under a dilation whose center is P and scale factor is 3 is shown in the image below.

What is a dilation?

In Geometry, dilation is a type of transformation which typically changes the size of a geometric shape, but not its shape. This ultimately implies that, the size of the geometric shape would be increased (enlarged) or decreased (reduced) based on the scale factor applied.

In this exercise, we would use an online graphing calculator to plot the image of ABC after a dilation by a scale factor of 3 centered at P.

Based on the image (see attachment), we can logically deduce that each vertex is 3 times as far from center P as the original vertex and each segment is 3 times as long as the original

Side length AC = (3.0)3 = 9.0

Side length AB = (5.0)3 = 15.0

Side length CB = (4.0)3 = 12.0

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Determine the equation of the circle with center (-3, -8) containing the point (-11, -23).

Answers

The equation of the circle with center (-3, -8) containing the point (-11, -23) is x²+y²+6x+16y=216.

The general form of the equation of the circle is (x-h) ²+(y-k) ²=r².

Here, (h, k) indicates the circle's center, and r indicates the circle's radius.

In the given question, (-3, -8) is the center of the circle.

Here, h = -3, k = -8.

Now, we need to find the radius of the circle.

Radius is the distance between the center of the circle and the given point (-11, -23).

Distance formula = √(x2-x1) ²+(y2-y1) ²

√ (-11-(-3)) ² + (-23-(-8)) ²

√ (-11+3) ² + (-23+8) ²

√64+225

√289

17.

So, the radius of the circle is 17.

Now, we can find the equation of the circle by substituting in the formula.

(x-h) ² + (y-k) ² = r²

(x-(-3)) ² + (y - (-8)) ² = 17²

(x+3) ² + (y+8) ² = 289.

x²+6x+9+y²+16y+64=289

x²+y²+6x+16y=216.

Therefore, the equation of the circle is x²+y²+6x+16y=216.

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Find the direction angles of the vector. (Round your answers to one decimal place.)
u = (-1, 9, -6)

Answers

The direction angles of the vector u = (-1, 9, -6) are approximately -6.1°, 64.8°, and -75.2° for the x, y, and z axes, respectively.

The direction angles of a vector are the angles that the vector makes with the positive x, y, and z axes. To find the direction angles of the vector u = (-1, 9, -6), we can use the formulas:

cosθx = u_x/||u||, cosθy = u_y/||u||, and cosθz = u_z/||u||

where θx, θy, and θz are the angles that u makes with the x, y, and z axes, respectively, and ||u|| is the magnitude of u, given by:

||u|| = √(u_x² + u_y² + u_z²)

Substituting the values of u, we have:

||u|| = √((-1)² + 9² + (-6)²) = √118

cosθx = -1/√118 ≈ -0.183, cosθy = 9/√118 ≈ 0.551, and cosθz = -6/√118 ≈ -0.366

Taking the inverse cosine of each of these values, we get:

θx ≈ -6.1°, θy ≈ 64.8°, and θz ≈ -75.2°

Therefore, the direction angles of the vector u are approximately -6.1°, 64.8°, and -75.2° for the x, y, and z axes, respectively.

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A food company puts exactly 10 sliced carrots in each bag of frozen vegetables. Let b represent the number of bags of frozen vegetables and c represent the total number of sliced carrots. Identify the independent variable.



A= b- the number of frozen bags



B= c- the total number of sliced carrots



C= there's not enough information given to answer



D= a food company puts carrots in a bag


Answers

The independent variable is A, the number of frozen bags.

The independent variable is the number of bags of frozen vegetables, represented by b. This is because the company can choose to package any number of bags, which will then determine the total number of sliced carrots, represented by c. The number of sliced carrots is not independent because it depends on the number of bags of frozen vegetables being packaged. Therefore, the answer is A, the number of frozen bags.

In statistical analysis, the independent variable is the variable that is being manipulated or changed in an experiment to observe the effect on the dependent variable.

In this case, the number of bags of frozen vegetables is the variable being manipulated, while the total number of sliced carrots is the dependent variable being affected by the number of bags. This understanding of independent and dependent variables is crucial in designing experiments and interpreting results in various fields, including food science, agriculture, and health research.

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The leaning tower of Pisa is approximately 179 ft in ""height"" and is approximately 16. 5 ft out of plumb. Find the angle at which it deviates from the vertical

Answers

The angle at which the leaning tower of Pisa deviates from the vertical is approximately 5.31 degrees.

How to find the angle of deviation?

In order to calculate the angle at which the leaning tower of Pisa deviates from the vertical, we can use the concept of tangent function.

First, we need to calculate the distance that the top of the tower is displaced from the vertical axis. This can be done using the Pythagorean theorem, which states that the displacement (d) is equal to the square root of the height of the tower (h) squared plus the amount the tower is out of plumb (p) squared:

d = √(h² + p²)

d = √(179² + 16.5²)

d = 180.14 ft

Next, we can use the tangent function to find the angle of deviation (θ):

tan(θ) = p/h

tan(θ) = 16.5/179

θ = tan⁻¹(16.5/179)

θ ≈ 5.31 degrees

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Assinale a alternativa que melhor julga a sentença abaixo:

"as frações 3/9 e 7/18 são equivalentes, pois representam a mesma parte do todo"
( ) verdadeiro
( ) falso

ajuda pfvrrrrrrr

Answers

The statement is true as 3/9 and 7/18 represent the same part of the whole.

How to determine if the fractions 3/9 and 7/18 are equivalent?

A sentença é falsa. As frações 3/9 e 7/18 não são equivalentes, pois não representam a mesma parte do todo. Para determinar se duas frações são equivalentes, é necessário simplificar as frações e verificar se os resultados são iguais.

No caso das frações 3/9 e 7/18, podemos simplificar ambas dividindo o numerador e o denominador pelo máximo divisor comum (MDC).

A fração 3/9 pode ser simplificada dividindo ambos por 3, resultando em 1/3. Já a fração 7/18 não pode ser simplificada ainda mais. Portanto, as frações 3/9 e 7/18 não são equivalentes, pois não representam a mesma parte do todo.

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Find The Linear Approximation To The Function F (Dy, Z) = Ce2yz+32 At The Point (X, Y, Z) = (3,-2,0)
f(x,y,z) = xe^2yz+3z
L (x,y,z) =

Answers

At the coordinates (X, Y, Z) = (3, -2, 0), L(x, y, z) = C+35 + x - 12Cz is the linear approximation to the function f(Dy, Z) = Ce^2yz+32.

To find the linear approximation to the function f(Dy, Z) = Ce^2yz+32 at the point (X, Y, Z) = (3,-2,0), we need to find the partial derivatives of the function with respect to each variable at the point (3,-2,0).

The partial derivative of f with respect to x is simply e^2yz, which evaluated at (3,-2,0) gives us e^0 = 1.

The partial derivative of f with respect to y is 2xzCe^2yz, which evaluated at (3,-2,0) gives us 2(3)(0)C = 0.

The partial derivative of f with respect to z is 2xyCe^2yz+3, which evaluated at (3,-2,0) gives us 2(3)(-2)C + 3(1) = -12C + 3.

Using these partial derivatives, we can construct the linear approximation L(x,y,z) = f(3,-2,0) + (x-3)(1) + (y+2)(0) + (z-0)(-12C+3) = Ce^0+32 + (x-3) - 12Cz + 3.

Simplifying this expression, we get L(x,y,z) = C+35 + x - 12Cz.

Therefore, the linear approximation to the function f(Dy, Z) = Ce^2yz+32 at the point (X, Y, Z) = (3,-2,0) is L(x,y,z) = C+35 + x - 12Cz.

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Look at the image below.
What is the area of the triangle?

Answers

Answer:

60

Step-by-step explanation:

Area of a triangle: 1/2(bh)

Base = 12

Height = 10

1/2(12*10)

1/2(120) = 60

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