help i need help please​

Complete Question

The complete question is shown on the first uploaded image

Answer:

a

 center is  0.275

 [tex]SE = 0.063[/tex]

b

 center is  0.275

 [tex]SE = 0.020[/tex]

Step-by-step explanation:

considering question a

From the question we are told that

   The sample size is  n  =  50

 The proportion of  US adults are college graduates is  p = 0.275

Generally the center is equivalent to the proportion so the center is  0.275

Generally the standard error is  

      [tex]SE =  \sqrt{\frac{p *  (1- p)}{ n} }[/tex]

=>   [tex]SE =  \sqrt{\frac{0.275 *  (1- 0.275)}{ 50} }[/tex]

=>   [tex]SE = 0.063[/tex]

considering question b

    The sample size is  n  =  500

      The proportion of  US adults are college graduates is  p = 0.275

     Generally the center is equivalent to the proportion so the center is  0.275

     Generally the standard error is  

      [tex]SE =  \sqrt{\frac{p *  (1- p)}{ n} }[/tex]

=>   [tex]SE =  \sqrt{\frac{0.275 *  (1- 0.275)}{ 500} }[/tex]

=>   [tex]SE = 0.020[/tex]

In the sampling distribution, the center of the sampling distribution is 0.275 and the standard error is 0.063.

A sampling distribution simply means the probability distribution that is gotten from a larger number of samples that are drawn from a population.

In this case, the center of the sampling distribution is 0.275 and the standard error is 0.063. The standard error will be:

= [p × (1 - p)]/n

= [0.275 × (1 - 0.275)]/50

= 0.0039875

= ✓0.0039875

= 0.063

Also, when the sample is 500, the center of the sampling distribution is 0.275 and the standard error is 0.020.

Learn more about sampling distribution on:

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Answer:

Use Tiger Algebra it helps with all answers i just didn't feel like typing it

Step-by-step explanation:

The side length of perry's phone will be 8 inches.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is Perry who wants to project a movie from his phone to a screen on the wall. The side length of the screen is 56 in. The scale from the screen to the phone is 7 in. to 1 in.

Assume the side length of perry's phone be [x] inches. Then, we can write the proportion as -

56/x = 7/1

x = 56/7

x = 8

Therefore, the side length of perry's phone will be 8 inches.

To solve more questions on equation modelling, visit the link below-

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Answer: -8

Step-by-step explanation: You do y2 which is -4 subtracted by y1 which is 4 over x2 which is 5 subtracted by x1 which is 4 and since the denominator is 1 it becomes just negative 8

Answer: I believe it’s 3 adults and 9 girls.

Step-by-step explanation:

Answer:

[tex] n + 7 \le 9 [/tex]

Step-by-step explanation:

[tex] n + 7 \le 9 [/tex]

Answ3r:

A.) 4 to 1

Step-by-step explanation:

yup!

Answer:

4 to 1

Step-by-step explanation:

Answer:

100 thousandths

Step-by-step explanation:

Hope this helps:)

Answer: 3x-8

Step-by-step explanation:

distribute- 2 times x=2x, and 2 times -4=-8

x+2x-8

combine like terms- x+2x=3x

3x-8

Answer:

[tex]\huge\boxed{\sf{3x-8}}[/tex]

Step-by-step explanation:

Hello.

In order to simplify this expression, we need to

[tex]\mathbb{THE\:FIRST\:STEP:}[/tex]

Distribute 2:

2(x-4)

2x-8

Step 1 is completed! :) [tex]\checkmark[/tex]

[tex]\mathbb{THE\:SECOND \ STEP:}[/tex]

Combine Like Terms:

x+2x-8

3x-8

Problem Solved! :) [tex]\huge\checkmark[/tex]

I hope it helps & have an outstanding day.

[tex]\boxed{imperturbability}[/tex]

Answer: c

Step-by-step explanation:

Answer:

what is the question being asked?

Step-by-step explanation:

Answer:

Hi

Step-by-step explanation:

Hi

Answer:

(A)

N(T(t)) = 416t² - 242.4 - 135.16

(B)

Time = 27.30 hours

Step-by-step explanation:

Given

N(T) = 26T² - 123T + 25

T(t) = 4t + 1.2

Solving for the composite function.

Substitute T for 4t + 1.2 in N(T)

N(T(t)) = 26(4t + 1.2)² - 123(4t + 1.2) + 25

N(T(t)) = 26(4t+1.2)(4t + 1.2) - 123(4t + 1.2) + 25

N(T(t)) = 26(16t² + 9.6t + 1.44) - 492t - 147.6 + 25

N(T(t)) = 416t² + 249.6t + 37.44 - 492t - 172.6

N(T(t)) = 416t² + 249.6t - 492t + 37.44 - 172.6

N(T(t)) = 416t² - 242.4 - 135.16

Solving for time.

We have that

N(T) = 16044

N(T) = 26T² - 123T + 25

This gives

16044 = 26T² - 123T + 25

26T² - 123T + 25 - 16044 = 0

26T² - 123T - 16019 = 0

Solve by quadratic, we have.

T = 27.299506396472

Or

T = -22.568737165703

Since time can't be negative

T = 27.299506396472

T = 27.30 (approximately)

Answer:

Uniform motion always travel in equal distances in equal intervals of time. So the graph will always be constant.

Once you draw the diagram of a uniform motion, when it comes to plotting points you can easily identify if the points go in a constant rate(uniform) or in  uneven distances(non-uniform).

Answer:

x=15

Step-by-step explanation:

subtract 1 from both sides so you are left with 2x=5x-45

then subtract 5x from both sides and you have -3x=-45

then finally divide -3 from -45 to get x=15

Answer:

-4 times, multiply, divide, subtract or add by 1

-4 is on the x line and (x) comes first in the equation. so x + y. Or whatever way your finding the answer.

They scored either 8 or 9 goals in second game.

Combining things and counting them as one big group is done through addition. In math, addition is the process of adding two or more integers together. Addends are the numbers that are added, while the total refers to the outcome of the operation.

As, Total goals = 10 in two games

Let x be the number of goals that a soccer team scored in the first half

and, y be the number of goals that a soccer team scored in the second half

So, x+ y = 10

x= 2 and y = 8

Thus, 2+ 8 = 10

Hence, They scored either 8 or 9 goals in second game.

Learn more about addition here:

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Answer:

Fast, since we can't explicitly add or subtract them. This will lead us to an incorrect response.  

Step-by-step explanation:

In this question we assume a value and solve its value which can be defined as follows:

Let the value:

[tex]\to \frac{3}{2}+\frac{4}{5}\\\\[/tex]

solve the above value by taking LCM that is equal to 10

[tex]\to \frac{15+ 8}{10}\\\\\to \frac{23}{10}[/tex]

Answer:

y = 26 I think lol

Step-by-step explanation:

2(3y + 7 + 5) = 196 - 16

196 - 16= 180

2(3y + 7 + 5) = 180

6y + 14 + 10 = 180

6y + 24 = 180

6y = 180 - 24 = 156

6y = 156

y = 156 divided by 5

y= 26

The y-intercept and slope of the line described by these points will be y = (1/4)x + 5.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

Let the equation of the line pass through (x₁, y₁) and (x₂, y₂). Then the equation of the line is given as,

[tex]\rm (y - y_2) = \left (\dfrac{y_2 - y_1}{x_2 - x_1} \right ) (x - x_2)[/tex]

Taking only two points from the table will be (4, 6) and (12, 8). Then the equation of the line is given as,

(y - 6) = [(8 - 6) / (12 - 4)](x - 4)

y - 6 = 1/4(x - 4)

y - 6 = (1/4) x - 1

y = (1/4)x + 5

The y-intercept and slope of the line described by these points will be y = (1/4)x + 5.

More about the line passing through two points link is given below.

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Answer:

a. N(t) = 1.25 (1/2)^t/7

b. 0.1160933038mg.

Step-by-step explanation:

The formula for half life =

N(t) = No(1/2)^t/t½

Where N(t) = Amount of Substance left

No = Initial amount not Substance

t = time after t years

t½ = Half life of the substance

From the question:

No = 1.25mg

t½ = 7 years

a. Find a model for the amount of albuterol left in the body t hours after an initial dose of 1.25 mg.

N(t) = No(1/2)^t/t½

No = 1.25mg

t½ = 7 years

N(t) = 1.25 (1/2)^t/7

b. How much albuterol is left in the body after 24 hours?

Using the model in the above question

N(t) = 1.25 (1/2)^t/7

N(t) = 1.25(1/2)^24/7

N(t) = 1.25(0.5)^3.4285714286

N(t) = 0.1160933038mg

Therefore, the quantity of albuterol left in the body after 24 hours is 0.1160933038mg.

Answer:

17/2

Step-by-step explanation:

8 × 2 = 16 adding 1 = 17

Answer:

Step-by-step explanation:

How do I make my question?

Answer:

72

Best of luck

Step-by-step explanation:

Answer:

k=2   k=-8

Step-by-step explanation:

Answer:

m=7/9

Step-by-step explanation:

-5(-5m+5)=-2m-4

25m-25=-2m-4      

25m+2m=-4+25

27m=21

÷ 27  ÷ 27     (divide both sides)

m=7/9 or .777 (infinite)

Answer:

its -x-15/2

I'm not sure this is correct but I think that's the answer

Answer:

i think its  C

Step-by-step explanation:

Answer:

x = 2 and x = 4

Step-by-step explanation:

The solution of the given equation is shown on the graph

There are two intercepts with coordinates of

The x-coordinates are

Correct option is 3 or C.

Answer:

C

Step-by-step explanation:

On the graph, you can see that we are given two points; (2, 2) and (4, -22)

Since we are looking for the value of "x", we need the x value of the given points.

The x values in both points are 2 and 4. Thus are the solutions.

Best of Luck!