Use a t-distribution to find a confidence interval for the difference in means =1−2
using the relevant sample results from paired data. Assume the results come from random samples from populations that are approximately normally distributed, and that differences are computed using =1−2
.

A 99% confidence interval for
using the paired data in the following table:


Case 1 2 3 4 5
Treatment 1 23 29 32 24 27
Treatment 2 17 32 24 22 21

Give the best estimate for
, the margin of error, and the confidence interval.

Enter the exact answer for the best estimate, and round your answers for the margin of error and the confidence interval to two decimal places.

best estimate = Enter your answer; best estimate


margin of error = Enter your answer; margin of error


The 99% confidence interval is Enter your answer; The 99% confidence interval, value 1
to Enter your answer; The 99% confidence interval, value 2
.

Answers

Answer 1

The range of the difference in means' 99% confidence level is from -1.42 to 10.02. The true mean difference between Treatments 1 and 2 falls between these two numbers, we can claim with 99% certainty for t-distribution.

We can use a t-distribution to determine a confidence interval for the difference in means using paired data. Prior to determining the mean difference and standard deviation of the differences, we first compute the difference between the paired observations.

Because we are only interested in the mean difference between Treatments 1 and 2, we compute the differences for each pair and get the following outcomes:

6 -3 8 2 6

The sample mean and sample standard deviation of these differences are then computed. The average of these variations is the sample mean.

(6 - 3 + 8 + 2 + 6)/5 = 3.8

The square root of the sum of squared differences divided by the degrees of freedom yields the sample standard deviation.

[tex]\sqrt{[(6 - 3.8)^2 + (-3 - 3.8)^2 + (8 - 3.8)^2 + (2 - 3.8)^2 + (6 - 3.8)^2]/(5-1)) } = 3.06[/tex]

The 99% confidence interval for the mean difference can then be determined using the t-distribution. Our sample size is tiny (n=5), so we utilise a t-distribution with four degrees of freedom.

The sample mean, which is 3.8, provides the most accurate approximation of the mean difference.

We must determine the crucial value of t for a 99% confidence interval with 4 degrees of freedom in order to determine the margin of error. The crucial value, which we determine using a t-table, is 4.604.

The margin of error is:

[tex]4.604 * (3.06/\sqrt{5}) = 5.22[/tex]

Lastly, by deducting and adding the margin of error from the sample mean, we can determine the confidence interval:

3.8 - 5.22 = -1.42

3.8 + 5.22 = 10.02

Learn more about t-distribution here:

https://brainly.com/question/13574945

#SPJ1


Related Questions

What is the equation of a straight line that passes through (2, 0)
and has a gradient of −3 ?

Answers

Answer:

Step-by-step explanation:

La ecuación de una línea recta que pasa a través de un punto \ ((x_1,y_1)\) y tiene un gradiente \ (m\) se puede escribir en la forma punto-pendiente1:

\ [y - y_1 = m (x - x_1)\]

En tu caso, el punto es \ ((2,0)\) y el gradiente es \ (-3\). Sustituyendo estos valores en la fórmula anterior, obtenemos:

\ [y - 0 = -3 (x - 2)\]

Simplificando esta ecuación, obtenemos:

\ [y = -3x + 6\]

Esta es la ecuación de la línea recta que buscas.

Espero que te haya sido útil. ¿Tienes alguna otra pregunta?

Espero que te haya sido útil.

A bag contains 8 counters labeled with the numbers 3, 4, 4, 5, 5, 6, 6, and 6. Select all of the true statements The probability of drawing a 2 is 0. The probability of drawing a 7 is 1. The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5. The probability of drawing a 3 or a 6 is 12 . The least likely number to draw is 4.

Answers

The true statements are, The probability of drawing a 2 is 0 and  The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

What is probability?

Prοbability is a way οf calculating hοw likely sοmething is tο happen. It is difficult tο prοvide a cοmplete predictiοn fοr many events. Using it, we can οnly fοrecast the prοbability, οr likelihοοd, οf an event οccurring. The prοbability might be between 0 and 1, where 0 denοtes an impοssibility and 1 denοtes a certainty.

Here the given , Total number of outcomes = N {3,4,4,5,5,6,6,6} = 8

Now probability = No of Favorable outcome/ Total outcome.

Here Option A , Number of 2 = 0.

Then probability of getting 2 = 0/8 = 0.

Option B, Number of 7 = 0

Then probability of getting 7 =0/8 = 0

Option C , Number of 5's = 2

probability of getting 5 = 2/8 = 1/4

Number of less than 5 = 3

Probability of getting less than 5 = 3/8

Here 1/4 > 3/8 . Then The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

Option D, Here least number in given is 3 not 5.

Hence the true statements are, The probability of drawing a 2 is 0 and The probability of drawing a number 5 or greater is greater than the probability of drawing a number less than 5.

To learn more probability refer the below link

https://brainly.com/question/13604758

#SPJ1

HELP ASAAAP

This scatter plot shows the recommended number of hours of sleep for people and their ages.

The equation represents the linear model for this data.
y=−0.25x+13

According to the model, what is the recommended amount of sleep for a 25-year-old person?

Answers

According to the model, the recommended amount of sleep for a 25-year-old person is equal to 6.75 hours of sleep.

What is a line of best fit?

In Mathematics and Statistics, a line of best fit is also referred to as a trend line and it can be defined as a statistical or analytical tool that is typically used by researchers and mathematicians in conjunction with a scatter plot, in order to determine whether or not there is any form of association and correlation between a data set.

Based on the scatter plot, we can logically deduce that a linear equation which represents the line of best fit include the following:

y = -0.25x + 13

For a 25 years old person, the recommended hours of sleep can be calculated as follows;

y = -0.25x + 13

y = -0.25(25) + 13

y = -6.25 + 13

y = 6.75 hours of sleep.

Read more on line of best fit here: brainly.com/question/12284501

#SPJ1

20. There are 100 packs of 100 sheets of paper on a table. Melissa must transfer 82 sheets from each
pack onto a cart. She can count at a maximum speed of 3 sheets per second and needs a minimum of 3
seconds more for putting each pack onto a cart. What is the minimum amount of time she will need to
accomplish the task?
a) 15 minutes
b) 8 minutes
c) 10 minutes
d) 12 minutes
e) 13 minutes

Answers

The minimum time that Melissa will need to accomplish the task are 15 minutes.

How much time will Melissa require to complete this task?

To start let's calculate the time she needs to count the sheets Melissa will transfer:

Sheets to be counted: 18 (Melissa can just count 18 sheets rather than 82 as there are 100 sheets in a pack) 100 - 82 = 18.

Time to count 3 sheets: 1 second

1 second = 3 sheets

    x         =  18 sheets

x = 18 x 1  / 3 = 6 seconds

6 seconds + 3 seconds to transfer the package =  9 seconds

Finally, let's calculate the total time by multiplying by the number of packs.

9 x 100 = 900 seconds / 60 =  15 minutes.

Learn more about time in https://brainly.com/question/17092753

#SPJ1

Molly is 54 3/4 inches tall. Nancy is 1 1/2 inches taller than Molly and Jane is 1 1/5 inches taller than Nancy. How tall is Jane?

Answers

Answer:

Jane is 57  9/20 inches tall.

Step-by-step explanation:


54 3/4 + 1 1/2 = 55 + (3/4 + 1/2) = 55 + (3/4 + 2/4) = 55 + 5/4 = 56 1/4 inches
Nancy is 56 1/4 inches tall.

Then Jane is 1 1/5 inches taller than Nancy:
56 1/4 + 1 1/5 = 57 + (1/4 + 1/5) = 57 + (5/20 + 4/20) = 57 + 9/20 = 57 9/20 inches so therefore

Jane is 57 9/20 inches tall.

The cheek for a large fitting is to be laid out in three sections. This will involve two 1-in. (25.4-mm) standing seams. The full allowance for each seam will be N-m.
A. 1% in. (27.0 mm).
B. 2 in. (50.8 mm).
C. 24 in. (57.2 mm).
D. 3 in (76.2 mm).

Answers

C is the correct answer

What is the probability of rolling an even number and spinning "A," given the sample space below?

1 2 3 4 5 6
A A1 A2 A3 A4 A5 A6
A A1 A2 A3 A4 A5 A6
B B1 B2 B3 B4 B5 B6
B B1 B2 B3 B4 B5 B6
1/6
1/2
1/4
1/12

Answers

Step-by-step explanation:

even number=6

A=12

:.6/12

=1/2

marking as brainlist please help!!

Answers

Answer:

x=7 and 1/6

Step-by-step explanation:

LOOK AT THE PICTURE! Because the transversal (line that goes through A and B) is straight, then:

(Angle C)+(20x+10)=180 deg

Angle C=(180 deg)-20x+10 deg

Angle C=170-20x

We know that 4x+2 is equal to angle C (marked in the picture) because of alternate interior angles are congruent theorem. So:

170-20x=4x+2

172=24x

x=7 and 1/6

Here’s the question

Answers

The value of 2 miles = 3520 yards and 3 miles = 5280 yards. 2 yards = 6 feet and 3 yards = 9 feet. 2 feet = 2 x 12 inches = 24 inches and 3 feet = 36 inches.

What is SI unit conversion?

The International System of Units (SI) units may be used in trade and commerce, grants and other business-related activities, educational information, and as guidelines in publications to improve understanding of the metric system. The SI units may be interpreted or modified for use in the United States by the Secretary of Commerce through the National Institute of Standards and Technology.

Multiply the number of miles by 1760:

1 mile = 1760 yards

2 miles = 2 x 1760 yards = 3520 yards

3 miles = 3 x 1760 yards = 5280 yards

Multiply the number of yards by 3, since there are 3 feet in a yard.

1 yard = 3 feet

2 yards = 2 x 3 feet = 6 feet

3 yards = 3 x 3 feet = 9 feet

Multiply the number of feet by 12, since there are 12 inches in a foot.

1 foot = 12 inches

2 feet = 2 x 12 inches = 24 inches

3 feet = 3 x 12 inches = 36 inches

Hence, the value of 2 miles = 3520 yards and 3 miles = 5280 yards. 2 yards = 6 feet and 3 yards = 9 feet. 2 feet = 2 x 12 inches = 24 inches and 3 feet = 36 inches.

Learn more about SI units here:

https://brainly.com/question/12750330

#SPJ1

An employee makes $15 per hour for up to 40 hours per week. For every hour over 40 hours worked in a week, the employee's pay is 1 1/2 regular hourly pay. The employee has to pay 30% of his income in taxes.

What is the employee's net pay after taxes if he works 52.5 hours in one week? Enter the answer in the box.

Answers

The employee's net pay after taxes if he works 52.5 hours in one week is $616.875.

What is the net pay?

The net pay is the difference between the gross periodic pay or earnings less statutory deductions, including income taxes.

Normal hourly rate = $15

Normal weekly hours = 40 hours

Overtime rate = 1¹/₂ of $15 = $22.50

Income tax rate = 30%

Total hours worked in one week = 52.5 hours

Overtime hours = 12.5 (52.5 - 40)

Normal weekly gross pay = $600 ($15 x 40)

Overtime pay = $281.25 ($22.50 x 12.5)

Total pay for the week = $881.25

Income tax = $264.375 ($881.25 x 30%)

Net pay = $616.875 ($881.25 - $264.375)

Learn more about the net pay at https://brainly.com/question/30610943.

#SPJ1

Which angle between -0° and -36° is coterminous with 887?

Answers

Answer:

Step-by-step explanation:

To find the coterminal angle with 887, we can add or subtract any multiple of 360°.

Adding a multiple of 360°:

887 + n(360)

where n is an integer.

Subtracting a multiple of 360°:

887 - n(360)

where n is an integer.

To find the angle between -0° and -36°, we need to subtract a multiple of 360° from 887 to get an angle between -0° and -36°.

887 - n(360) = -x

where x is the angle between -0° and -36°.

We can solve for x:

x = 887 - n(360)

We want x to be negative, so we need to choose a value of n such that 887 - n(360) is less than 0.

If we set n = 3, then:

x = 887 - 3(360) = 47

So, the angle between -0° and -36° that is coterminal with 887 is 47 degrees.

The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

Answer:

16

Step-by-step explanation:

Because this is a right triangle the two angles besides the right angle add up to 90°

33 + 3x + 9 = 90

Combine like terms

42 + 3x = 90

Isolate the x ( subtract 42 from both sides)

3x = 48

Divide both sides by 3

x = 16

Answer:

X= 16

Step-by-step explanation:

right angle = 90°

And we have 33° already

90 + 33 = 123

Triangle is 180

180 - 123 = 57

Write in an equation

57 = 3x + 9

57- 9 = 48

48= 3x

48/ 3 = 16

X= 16

the graph of y=f(x) is shown below find all values of x where f(x)=1

Answers

the values of x where f(x) = 1 for the function y = x^2 - 2x + 1 are x = 0 and x = 2.

general steps to find all values of x where f(x) = 1 for a given function y = f(x):

1. Set f(x) equal to 1: f(x) = 1.
2. Solve the equation for x. This may involve algebraic manipulation or using techniques such as factoring, completing the square, or using the quadratic formula, depending on the form of the equation.
3. If the equation has multiple solutions, list them all as the values of x where f(x) = 1. If the equation has no solutions, then there are no values of x for which f(x) = 1.

For example, if the function is y = x^2 - 2x + 1, then setting f(x) = 1 gives:

x^2 - 2x + 1 = 1

Simplifying this equation by subtracting 1 from both sides, we get:

x^2 - 2x = 0

Factoring out x, we get:

x(x - 2) = 0

This equation is satisfied when either x = 0 or x = 2. Therefore, the values of x where f(x) = 1 for the function y = x^2 - 2x + 1 are x = 0 and x = 2.

To know more about value of x go through:-

https://brainly.com/question/27944341

#SPJ9

Three grams of musk oil are required for each bottle of Mink Caress, a very popular perfume made by a small company in western Siberia. The cost of the musk oil is $1.50 per gram. Budgeted production of Mink Caress is given below by quarters for Year 2 and for the first quarter of Year 3:

Answers

Cost of Raw Materials for 4 years is  =  $ 297,000 $ 459,000  $ 630,000  $ 423,000

Define Budgeted production

Budgeted production refers to the expected level of production that a company plans to achieve during a specific period of time, typically a year. It is a key component of the budgeting process and involves estimating the amount of goods or services that a company will produce and sell in the upcoming period, based on various factors such as market demand, production capacity, and available resources.

Part 1:

                    Direct Materials Budget in Bottles & Grams  

                                                Year 2                                        

                                       First        Second       Third         Fourth      Total

Budgeted production,   60,000     90,000    150,000    100,000    450,000

Add Desired Ending Inventory

20 % 0f the Production   18,000   30,000    20,000      14,000     82,000

Less Beginning Inventory  

36,000/ 3                 12,000     18,000   30,000    20,000      80,000          

D.

Materials         66,000    102,000   140,000    94,000   452,000

Grams in a Bottle       3              3               3                3                 3              

Raw Materials      198,000     306,000   420,000  282,000   1356,000

Costs                      $1.50           $1.50        $1.50          $1.50        1.50          

Costs Raw Materials   $ 297,000 $ 459,000  $ 630,000  $ 423,000

    Total Raw Material Cost is $2,034,000.

Part 2:

"Unit cost of raw materials"

Direct Materials Budget in Bottles & Grams

                                                Year 2                                          Year 3

                                             First        Second       Third         Fourth      First

Budgeted production

Production                       = 60,000     90,000    150,000    100,000    70,000

Desired Ending Inventory  

20 % of the Production =      18,000   30,000    20,000      14,000

Less Beginning Inventory  

36,000/3   =   12,000/18,000  30,000  20,000  14,000  for musk oil.

D.

Materials Budget    =                 66,000    102,000   140,000    94,000

Grams in a Bottle    =                       3              3               3                3          

gms = 198,000 306,000 420,000 282,000 for raw materials

Costs(given)            =               $1.50           $1.50        $1.50          $1.50      

Costs of Raw Materials are $ 297,000, $ 459,000, $ 630,000, and $ 423,000 for 4 years.

Therefore, the correct answer are :

Total Raw Material Cost is $2,034,000.

Cost of Raw Materials for 4 years is  =  $ 297,000 $ 459,000  $ 630,000  $ 423,000

To know more about capacity, visit:

https://brainly.com/question/15158174

#SPJ1

The complete question is:

Three grams of musk oil are required for each bottle of Mink Caress, a very popular perfume made by a small company in western Siberia. The cost of the musk oil is $1.50 per gram. Budgeted production of Mink Caress is given below by quarters for Year 2 and for the first quarter of Year 3:

Year 2 Year 3

First Second Third Fourth First

Budgeted production, in bottles 60,000 90,000 150,000 100,000 70,000

Musk oil has become so popular as a perfume ingredient that it has become necessary to carry large inventories as a precaution against stock-outs. For this reason, the inventory of musk oil at the end of a quarter must be equal to 20% of the following quarters production needs. Some 36,000 grams of musk oil will be on hand to start the first quarter of Year 2.

Required:

Prepare a direct materials budget for musk oil, by quarter and in total, for Year 2. (Round "Unit cost of raw materials" answers to 2 decimal places.)

Solve the formula 3x+4y=10 for y

Answers

Answer:formula 3x + 4y = 10 can be solved for y as y = (10 - 3x) / 4.

Step-by-step explanation:

To solve for y, we need to isolate y on one side of the equation.

3x + 4y = 10

Subtract 3x from both sides:

4y = 10 - 3x

Divide both sides by 4:

y = (10 - 3x) / 4

How can I solve this?

Answers

Answer:

Step-by-step explanation:

first.. simplify

5.9x^2 + 8.5x +4.5x^2+5x (add the others together in a different problem)

then subtract the two numbers (i hope this helps!)

The regular price of a color TV is ​$445.81. During a​ sale, Hill TV is selling the TV for ​$393.36. Determine the percent decrease in the price of the TV.

Answers

The regular price of the TV is $445.81, and the sale price is $393.36.

To find the percent decrease in the price, we can use the formula:

percent decrease = (original price - sale price) / original price x 100%

Substituting the given values, we get:

percent decrease = ($445.81 - $393.36) / $445.81 x 100%

percent decrease = $52.45 / $445.81 x 100%

percent decrease = 0.1175 x 100%

percent decrease = 11.75%

Therefore, the percent decrease in the price of the TV is 11.75%.

La raíz cuadrada de 81 dividida en el cuadrado de 3

Answers

Answer:

27 duh lord help them please and me

What describes the movement of a figure that is translated according to the rule below?
x,y→(x+4, y-6).

Answers

4 units tο the right and 6 units dοwn, withοut changing its size οr οrientatiοn describes the mοvement οf a figure that is translated accοrding tο the rule belοw.

What is mοvement οf a figure?    

In geοmetry, a mοtiοn is an isοmetry οf a metric space. Fοr instance, a plane equipped with the Euclidean distance metric is a metric space in which a mapping assοciating cοngruent figures is a mοtiοn.

The rule [tex]$\rm (x,y) \to (x+4,y-6)$[/tex] defines a translatiοn οf a figure in the plane. Specifically, each pοint in the οriginal figure is mοved 4 units tο the right and 6 units dοwn tο οbtain the cοrrespοnding pοint in the translated figure.

Fοr example, cοnsider the pοint (2, 3) in the οriginal figure. Applying the translatiοn rule, we οbtain (2+4 ,3-6) = (6,-3) as the cοrrespοnding pοint in the translated figure.

Similarly, any οther pοint (6, 4) in the οriginal figure is translated tο the pοint (6+4 ,4-6) = (10,-2)  in the translated figure.

Geοmetrically, we can think οf the translatiοn as sliding the entire figure 4 units tο the right and 6 units dοwn, withοut changing its size οr οrientatiοn.

To learn more about  translated figure click on the link:

https://brainly.com/question/23961993

#SPJ1

Help!! please!!!!!!!!PLEASE!!!!!!!PLEASE PLEASE M BEEGGNG.

Answers

The independent events are given below:

Rolling a dice and flipping a coin:

Spinning two spinners each round:

The Dependent Events

Grabbing an S out of the scrabble bag and then grabbing an M:

These are dependent events because the outcome of the first event affects the outcome of the second event. The number of possible outcomes for the second event depends on the outcome of the first event.

For example, if the S is not replaced in the bag after it is picked, then the probability of picking an M on the second draw will be different if an S was picked on the first draw.

Pulling a candy, eating it, and pulling another out of a bag:

These are dependent events because the outcome of the first event affects the outcome of the second event. After one candy is removed from the bag, the total number of candies in the bag decreases, which affects the probability of selecting a certain type of candy on the second draw.

Read more about independent events here:

https://brainly.com/question/27665211

#SPJ1

If h(x) = 5 + x and k (x) = StartFraction 1 Over x EndFraction, which expression is equivalent to (k circle h) (x)?\

A: StartFraction (5 + x) Over x EndFraction
B: StartFraction 1 Over (5 + x) EndFraction
C: 5 + (StartFraction 1 Over x EndFraction)
D: 5 + (5 + x)

Answers

Answer:

B: (k circle h)(x) = StartFraction 1 Over (5 + x) EndFraction

Step-by-step explanation:

To find the expression that is equivalent to (k circle h)(x), we first need to find k(h(x)).

k(h(x)) = k(5 + x) = 1/(5 + x)

Therefore, the expression that is equivalent to (k circle h)(x) is 1/(5 + x), which is option B:

(k circle h)(x) = StartFraction 1 Over (5 + x) EndFraction

Use the confidence interval to find the estimated margin of error. Then find the sample mean.
A biologist reports a confidence interval of (4.1,4.9) when estimating the mean height (in centimeters) of a sample of seedlings.
The estimated margin of error is

Answers

Thus, estimated margin of error is 0.4.  Sample mean height of seedlings is 4.5 cm.

Explain about the margin of error?

The degree of error in survey findings from random sampling is known as the margin of error in statistics. A wider margin of error for statistics denotes a reduced possibility of relying on a survey's or poll's findings, meaning that there will be less confidence in the results' ability to accurately reflect a community.

In order to admit that sample findings will vary between sample to sample and may differ from the actual population situation, you must add a margin of error to your statistical results.

Given data:

confidence interval of (4.1,4.9)

upper limit k = 4.9.

Lower limit r = 4.1.

So,

margin of error E = (k - r)/2

E = (4.9 - 4.1)/2

E = 0.4

Thus, estimated margin of error is 0.4.

Sample mean height of seedlings:

x = k - E

x = 4.9 - 0.4

x = 4.5

Thus, Sample mean height of seedlings is 4.5 cm.

Know more about the margin of error

https://brainly.com/question/10218601

#SPJ1

PLEASE HELP ME!!! THANK YOU

Answers

The interval notation for the solution set is (-∞, -4] and the number line is on the image at the end.

How to find the solution set of the ienquality?

Here we want to find the solution set of the inequality below:

x ≤ -4

First let's do the interval notation. This will be the set that contains all the numbers from negative infinity to -4 (with -4 included, so  we need to have a closed set at that end)

This is written as:

(-∞, -4]

The use of the symbols [ ] means that the element belongs to the set.

Now to the number line, we will have a closed circle at x = -4 (because it is a solution) and a line that goes to the left of it. You can see an example in the graph at the end.

Learn more about inequalities at:

https://brainly.com/question/24372553

#SPJ1

what is the answer to this math equation i am very bad at division and dont understand it (564873 / 5) * 2 + 6

Answers

Answer:

225955.2

Step-by-step explanation:

What is the least number of plums that can be shared equally among 6, 9 or 12 children? (A) 27 (B) 36 (C) 54 (D) 72​

Answers

The least number of plums that can be shared equally among 6, 9, or 12 children is the smallest common multiple (LCM) of 6, 9, and 12.

Prime factorizing each number, we get:

6 = 2 * 3 9 = 3 * 3 12 = 2 * 2 * 3

Taking the highest power of each prime factor, the LCM is:

LCM = 2 * 2 * 3 * 3 = 36

Therefore, the least number of plums that can be shared equally among 6, 9, and 12 children is 36, which is option (B).

Answer:

Step-by-step explanation: answer is choice B or 36

That would be finding the Lcm of least common multiple of the three numbers. Which is 36

hope it helps!

help pls show ur work

Answers

22. 3.9 feet tall at the highest point.

23. 12.6 inches long.

24. 76.6 feet tall.

25. The height of the formation is 50.3m.

What is trigonometry?

Trigonometry studies the relationships between sides and angles of triangles.

22. To calculate the height of the ramp, David can use the concept of trigonometry. The formula for finding the height of a right triangle is h = opposite side/sin(angle).

The opposite side is 3.5 feet and the angle is 20°.

Therefore, h = 3.5/sin(20°) = 3.9 feet. The ramp needs to be 3.9 feet tall at the highest point, rounded to the nearest tenth.

23. To calculate the length of the springboard, Eric can use the concept of trigonometry.

The opposite side is 6 inches and the angle is 14.5°. Therefore, a = 6/tan(14.5°) = 12.6 inches. The springboard is 12.6 inches long.

24. To calculate the height of the roller coaster, the concept of trigonometry can be used.

The opposite side is 98 feet and the angle is 55°.

Therefore, h = 98/sin(55°) = 76.6 feet. The roller coaster is 76.6 feet tall when it reaches the top of the first hill.

25. To calculate the height of the formation, Diego can use the concept of trigonometry.

The opposite side is 43m and the angle is 36°. Therefore, h = 43/sin(36°) = 50.3m.

For more questions related to angle

https://brainly.com/question/25770607

#SPJ1

How much pure alcohol must a pharmacist add to 10cm^(3) of a 8% alcohol solution to strengthen it to a 80% solution? cubic centimeters

Answers

36 cm³ of pure alcohol is added to 10 cm of an 8% alcohol solution to strengthen it to an 80% solution.

What is the solution?

A particular kind of homogenous mixture made up of two or more substances is known as a solution. A solute is a substance that has been dissolved in a solvent, which is the other substance in the mixture.

Here, we have

Given: a pharmacist adds 10cm^(3) of an 8% alcohol solution to strengthen it to an 80% solution.

Let x represent the volume of pure alcohol (100%) in cm³ needed to be added.

x × 100% + 10 cm³ × 8% = 80% × (x + 10 cm³)

x × 1 + 10 × 0.08 = 0.8 × (x + 10)

x + 0.8 = 0.8x + 8

0.2x = 7.2

x = 36 cm³

Hence, 36 cm³ of pure alcohol is added to 10 cm of an 8% alcohol solution to strengthen it to an 80% solution.

To learn more about the solution from the given link

https://brainly.com/question/25326161

#SPJ1

I need help Area of a circle

Answers

Answer:

The formula

Step-by-step explanation:

just do pi times the circle's radius squared.

(pi x r squared)

Luis plays basketball for WVC. For the free throws, he makes the
shot 75% of the time. He must now attempt two free throws. Probability that Luis makes the first
shot is 0.75. The probability Luis makes the second shot is 0.75. The probability Luis makes the
second free throw given that he made the first is 0.85. Calculate the probability that Luis makes
both free throws.
Please write your answer as a decimal. Round your answer to the third decimal place.

Answers

Let's use the conditional probability formula to calculate the probability that Luis makes both free throws:

P(both free throws) = P(makes first) * P(makes second | makes first)

We are given that:

P(makes first) = 0.75

P(makes second | makes first) = 0.85

So we can substitute these values in the formula:

P(both free throws) = 0.75 * 0.85

P(both free throws) = 0.6375

Therefore, the probability that Luis makes both free throws is 0.6375, or 0.638 rounded to the nearest thousandth.

the answer is 0.638 .

what is the circumference of a circle with a diameter of 21 cm?

Answers

The circumference of a circle with a diameter of 21 cm is 65. 94cm

How to determine the circumference

The equation for the formula that is used to determine the circumference of a circle is expressed as;

C = 2πr

Such that the parameters are enumerated as;

C is the circumference of the circleπ takes the constant value of 3.14 or 22/7r is the radius of the circle

Also, the formula for calculating the radius of a circle is expressed as;

Radius = Diameter/2

Substitute the value

Radius = 21/2 = 10. 5cm

Substitute the value for circumference

Circumference = 2 × 3.14 × 10. 5

Find the value

Circumference = 65. 94cm

Learn about circumference at: https://brainly.com/question/14283575

#SPJ1

Other Questions
The humid subtropical climate dominates the ______ United States. A) central B) southeastern C) western D) northeastern E) southwestern. the sum of the exterior angles of any given polygon is always equal to ? radioactive decay is a classic first order process. the half-life of 14c is 5,730 yr's. if you started with 0.973 grams of 14c how long would it take to get to 0.00132 gram? where was the birthplace of the industrial revolution? an asset used in a four-year project falls in the five-year macrs class (macrs schedule) for tax purposes. the asset has an acquisition cost of $6,900,000 and will be sold for $1,500,000 at the end of the project. if the tax rate is 21 percent, what is the aftertax salvage value of the asset? The power of media in elections can be substantial because it can sway uncommitted voters, who often decide the election results.(t/f) the is what one sees and hears when walking around an organization as a visitor, a customer, or an employee. group of answer choices role culture power culture observable culture person culture core culture Which performance evaluation is best to use for subjective measurements?OA. Essay appraisalB. Checklist scaleC. Work standards approachO D. Graphic rating scale Which of the following are end-products of glycolysis?a. CO2 and H2Ob. Pyruvate, CO2, and ATPc. Pyruvate, NADH, and ATPd. Acetyl CoA, CO2, and NADHe. Citrate, H2O, and FADH 2 light is the very narrow range of wavelengthsthat falls between infrared light and ultraviolet light. help asap will give brainliest! PLEASE HELP! I AM GIVING 100 Points!!3.2.9 Practice: Complete Your AssignmentContinue working to annotate and analyze Shakespeare's The Tempest. You will select one scene from the play and provide annotations that explain Shakespeare's use of figurative language. Then you will examine your partner's scene and write a paragraph that explains how details from the scene, including the figurative language, reveal Shakespeare's attitudes toward colonialism and imperialism.Your assignment should include the following elements:- At least 12 annotations about the figurative language in a scene from The Tempest- Annotations that cover at least three different types of figurative language- A paragraph about your partner's scene that analyzes Shakespeare's message about colonialism and imperialism in The Tempest - Evidence from the scene to support your analysis a health care provider prescribes carbamazepine 1,200 mg/po/q12h for a client with trigeminal neuralgia. which action should the nurse take first? Which sentence correctly describes inducers and co-repressors?A. They bind to each other to either repress or de-repress expression of an operon.B. They bind simultaneously to different sites on the same protein to control expression of an operon.C. Both interact with a cognate repressor to regulate transcription of an operon.D. Both are encoded by structural genes found on their respective operons.E. Both are DNA-binding proteins. in case the potion doesnt work, what item does juliet keep with her in the bed? is running a transnational corporate-level strategy. it means that customization for the local market. economies of scale and centralized strategic control. global efficiency and local responsiveness. standardization of products across countries which is an example of internal secondary data for marketing research? in which country was the goldfish originally domesticated? Solving in equality maria and her therapist have agreed that maria will control the length and frequency of her sessions. her therapist also tries not to give advice but rather to rephrase maria's concerns to help maria focus her thoughts more effectively. maria is probably in what type of therapy?