A survey of 1012 teens found that 25% of students aged 14 to 18 plan to borrow no
money to pay for college. What's the margin of error for a 95% confidence interval for
the proportion of all students aged 14 to 18 who plan to borrow no money to pay for
college?

Answers

Answer 1

Answer c

Step-by-step explanation: i took the test and got them all right


Related Questions

Can someone help and explain how to do this

Answers

Where is the picture?

Answer: yeah

Step-by-step explanation: So what you do is ask a question and then add a picture so people know what the fawk you talkin bout lol.

Suppose the sum of three consecutive even integers is given. How can you find the three numbers?

Answers

Answer:

y = (x-6)/3

Step-by-step explanation:

3 consecutive even integers:  y, y+2, y+4

y+y+2+y+4 = x

3y+6 = x

y = (x-6)/3

Choose the correct answer. If a bond sells for _____ face value, it is selling at a discount
more than
less than​

Answers

Answer: less then

Step-by-step explanation:

Evaluate the expression when a = 2 and b=4.
6²-2a
Simplify your answer as much as possible.
I
Please help!!!

Answers

Answer:

6

Step-by-step explanation:

hope this will help u for your work

Can someone help me plz

Answers

Answer:

its C

Step-by-step explanation:

IM A DUMB BLONDE I NEED YOUR HELP ASAP

Answers

Answer:

The answer is A:10

Step-by-step explanation:

x =10

Answer:

10

Step-by-step explanation:

4×sqrt(3)(x-2) =8 //multiply both sides with power of 3 (so you get rid of the square root of 3.

64(x-2) = 512

64x - 128 = 512

64x = 640 // /64

x=10

Which of the following ordered pairs is represented by a point located on the y-axis?

Select one:

a.(6,-6)

b. (3,3)

c. (0,8)

d. (-5,0)

Answers

Answer:

d (-5,0)

Step-by-step explanation:

If a point is located on the x-axis, then the y-coordinate is 0.  

d is the only point that sits on the x-axis. I know this because it's y-coordinate is 0.

(0,8) is actually a point sitting on the y-axis.

3 dollars and 30 cents (b)

Which expression is equivalent to -8.2-5​

Answers

Answer:

-13.2

Step-by-step explanation:

-8.2-5 is the same as adding them if they were positive and then adding the negative sign in front

Use appropriate algebra and Theorem 7.2.1 to find the given inverse Laplace transform. (Write your answer as a function of t.) ℒ−1 s (s − 4)(s − 5)(s − 20)

Answers

Answer:

[tex]L^{-1} \begin {pmatrix} \dfrac{s}{((s-20)(s-5)(s-4)} \end {pmatrix}= \dfrac{e^{4t}}{12}\begin {pmatrix}e^{16t} - 4e^t+3 \end {pmatrix}[/tex]

Step-by-step explanation:

From the given information the first step to carry out is to find the partial fraction of the given equation; i.e.

[tex]\dfrac{s}{(s-4)(s-5)(s-20)}= \dfrac{A}{s-4}+\dfrac{B}{s-5}+\dfrac{C}{s-20}[/tex]

After finding the partial fraction; we get:

[tex]s= s^2(A+B+C)+s(-2A-24B-25C)+20A+80B+100C[/tex]

By solving this; we get:

[tex]A =\dfrac{1}{12}\ ; \ B = -\dfrac{1}{3} \ ; \ C= \dfrac{1}{4}[/tex]

Thus;  the above equation can be re-written as:

[tex]\dfrac{s}{(s-20)(s-5)(s-4)}= \dfrac{\dfrac{1}{12}}{s-20}+\dfrac{-\dfrac{1}{3} }{s-5}+\dfrac{\dfrac{1}{4}}{s-4}[/tex]

Finally as a function of t ;

[tex]L^{-1} \begin {pmatrix} \dfrac{s}{((s-20)(s-5)(s-4)} \end {pmatrix}= \dfrac{e^{4t}}{12}\begin {pmatrix}e^{16t} - 4e^t+3 \end {pmatrix}[/tex]

Given B is the midpoint of line segment AC. AB=4x and AC=24 Find x

Answers

Answer:

x=3

Step-by-step explanation:


6x3 – 5x² + x + 1 divided by x + 2

Answers

-18x+4/x+2. Answer -9x+6

Jim earned $95 after working days. At this rate how many days will it take him to earn $285?​

Answers

Answer: 3

Step-by-step explanation:

95 x 3 = 285

Answer:3

Step-by-step explanation:

Solve for m. The radical is equation below.

Answers

Answer:

m = 15√3

Step-by-step explanation:

Hi there !

m/√3 - 11 = 4

m√3/√3·√3 - 11 = 4

m√3/3 - ³11 = ³4

m√3 - 33 = 12

m√3 = 12 + 33

m√3 = 45

m = 45/√3

m = 45√3/3

m = 15√3

Good luck !

if 2/3 of the girls in class have brown eye and 1/4 of the girls have blue eyes what fraction of the girls in class have neither blue or brown eyes​

Answers

Answer:

1/12 have neither blue or brown eyes.

Step-by-step explanation:

First you change the fractions to have an equal denominators. 2/3= 8/12. 1/4= 3/12.

Then you add them

8/12 + 3/12= 11/12

After that you subtract 12/12- 11-12= 1/12

I hope this helps you.

1/1 I think but I’m dumb so I might be wrong

a video game is $38.00 plus 8% sales tax. What is the sales tax on this video game in dollars and cents?

Answers

The tax is $3.04, 8% of 38.00 is 3.04.

Jeffrey is considering two different car loans. One is for 5 years and one is for 6 years. How many additional payments are required if Jeffrey chooses the 6-year loan?

Answers

Answer:

12

Step-by-step explanation:

What is an equation of the line that passes through the point ( 1 , 7 ) and is parallel to the line
3x−y=1?

Answers

Answer:

(y-1)= 3(x-7)

Step-by-step explanation:

1.  you put the equation given in slope intercept form so y=3x-1.

2.  you find the slope, parellel lines have the same slope so the slope for the new equation will remain 3.

3. then you write the point-slope form equation

4) make sure to plug in the x1 and y1 values from the coordniates given

The required equation of the line is given as 3x - y = -4.

Given that,
The equation of the line that passes through the point ( 1, 7 ) and is parallel to the line 3x−y = 1 is to be determined.

What is the slope of the line?

The slope of the line is a tangent angle made by line with horizontal. i.e. m = tanx where x in degrees.

here,
The standard equation of the line is given as,
y = mx  + c,
Since the line is parallel to line 3x - y = 1 whose slope is m = 3, and also the slope of the parallel line are equal.
so,
y = 3x + c
Put points (1, 7) in the above equation,
7 = 3 + c
c = 4
y = 3x + 4

Thus, the required equation of the line is given as 3x - y = -4.

Learn more about slopes here:
https://brainly.com/question/3605446

#SPJ5




A buyer purchases 20% of the 12,000 widgets in a warehouse inventory. The next day, another buyer purchases 10% of the remaining widgets. How many wedges are left in the warehouse?

Answers

Answer:

600000

Step-by-step explanation:

8400 because: 12,000 -20%(2400)=9600 and then 10% more would be (1200) so 9600-1200 is 8400

A normally distributed population has a mean of 500 and a standard deviation of 60. Determine the probability that a random sample of size 16 selected from this population will have a sample mean less than 475. A. 0.3251 B. 0.0712 C. 0.7124 D. 0.0475

Answers

Answer:

D

Step-by-step explanation:

We start out by calculating the z-score

z = (x-mean)/SD/√n

x = 475

mean = 500

SD = 60

n = 16

Substituting these;

z = (475-500)/60/√16

z = (-25)/60/4

z = -25/15

z = -1.67

So the probability we want to

calculate is P (x < -1.67)

we can use the standard normal distribution table here;

And from the standard normal distribution table;

we have P( x < -1.67) as 0.04746

which is approximately 0.0475

The probability that this population will have a sample mean less than 475 is 0.0475

z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

[tex]z=\frac{x-\mu}{\sigma/\sqrt{n} } \\\\where\ \mu=mean,\sigma=standard\ deviation,x=raw\ score,n=sample\ size[/tex]

Given that n = 16, μ = 500, σ = 60.

For x < 475:

[tex]z=\frac{475-500}{60/\sqrt{16} } =-1.67[/tex]

From the normal distribution table, P(x < 475) = P(z < -1.67) = 0.0475

The probability that this population will have a sample mean less than 475 is 0.0475

Find out more on z score at: https://brainly.com/question/25638875

The following are the number of departmental stores in 10 cities: 35, 27, 24, 32, 42, 30, 34, 40, 29 and 38.If we want to select a sample of 15 stores using cities as clusters and selecting within clusters proportionalto size, how many stores from each city should be chosen? (Use a starting point of 4).

Answers

Answer:

24

Step-by-step explanation:

:) hope this help

You are conducting an experiment to evaluate how the number of hours spent exercising each week affects blood pressure. What is the independent variable in this experiment

Answers

Answer:

The question is incomplete, below is the complete question

You are conducting an experiment to evaluate how the number of hours spent exercising each week affects blood pressure. What is the independent variable in this experiment?

The intensity of the exercise.

The amount of exercise each week.

Blood Pressure

The type of exercise.

Answer:

The amount of exercise each week.

Step-by-step explanation:

The two major kinds of variables in a scientific experiment are the independent and dependent variables.

The independent variable is the variable whose values are completely under the complete manipulation of the experimenter. The experimenter decides what value to assign to the variables in this category and the effect of the manipulation of the independent variable determines the outcome variable. In this example, the amount of exercise each week, which is determined by the number of hours exercised each week is subject to the experimenter, hence it is the independent variable

The dependent or outcome variable is the variable whose values depend on the effect of the manipulation of the independent variable. This variable is not directly subject to the manipulation of the experimenter. In this example, the blood pressure gotten after the exercise is the outcome variable.

The variables in an experiment can be dependent or independent

The independent variable in the experiment is: the amount of exercise each week.

From the question, the parameters are:

Exercise intensity  Amount of exercise each week.  Blood Pressure Type of exercise.

For a variable to be considered as the independent variable, then the variable is not influenced by other variables or parameters.

Within the scope of this question, the independent variable is the weekly amount of exercise

Read more about variables at:

https://brainly.com/question/3764906

What is the value of y?
y + 10
50"
A. 50°
B. 40°
C. 30°
D. 60°

Answers

Answer:

B) 40

Step-by-step explanation:

[tex]interior - angle - of a triangle - is - always - 180\\\\2y + (y + 10) + 50 = 180\\2y + y + 10 + 50 = 180\\3y + 60 = 180\\subtract-60-from-both-sides\\3y = 120\\y = \frac{120}{3}\\y = 40[/tex]

Answer:

B)

Step-by-step explanation:

a p ec

A set of stickers contain 4 hearts for every 6 stars. Which choice contains an equivalent ratio of hearts to stars

Answers

Answer:

4:6

Step-by-step explanation:

4:6

8:12

12:18

16:24

Answer:

2:4

Step-by-step explanation:

what is the slope of the line described by the equation below ​

Answers

Answer:

5

Step-by-step explanation:

the slope is the one conecter to the x

Tell whether the sum is positive, negative, or zero without adding them. -11/12 + 7/12

Answers

negative, because 11 is greater than 7. just think about it like a number line :)

Negative because 11 is a bigger number than 7 :) I hope this helps

The derivative of y = 57x-4

Answers

Answer:

[tex]\displaystyle y' = 57[/tex]

General Formulas and Concepts:

Calculus

Differentiation

DerivativesDerivative Notation

Derivative Property [Multiplied Constant]:                                                           [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]

Derivative Property [Addition/Subtraction]:                                                         [tex]\displaystyle \frac{d}{dx}[f(x) + g(x)] = \frac{d}{dx}[f(x)] + \frac{d}{dx}[g(x)][/tex]

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle y = 57x - 4[/tex]

Step 2: Differentiate

Derivative Property [Addition/Subtraction]:                                                 [tex]\displaystyle y' = \frac{d}{dx}[57x] - \frac{d}{dx}[4][/tex]Derivative Property [Multiplied Constant]:                                                   [tex]\displaystyle y' = 57 \frac{d}{dx}[x] - \frac{d}{dx}[4][/tex]Basic Power Rule:                                                                                         [tex]\displaystyle y' = 57[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

4. Which of the following equations would 6.61 make true? 3.59 +__ = 10.2
___ - 2.19 = 4.58. ___ 12.56 +___ = 18.17 7.19 - = 0.58​

Answers

The first one because: 3.59+6.61=10.2

Answer:

3.59+6.61=10.2

Step-by-step explanation:

3.59+6.61=10.2

6.77-2.19=4.58

12.56+5.61=18.17

7.19-7.77 =0.58

Brainliest please?!?!

g 5. (Sec. 5.1) Suppose the marginal pdfs of two independent rvs X and Y are given byfX(x) = (5x4 for 0  x  10 otherwisefY (y) = (2y3 + y for 0  y  10 otherwise(a) Find the joint pdf of X and Y .

Answers

Answer:

f(x,y) = 5x⁴(2y³ +y )           0<x<1 , 0<y<1 , 0 otherwise

Step-by-step explanation:

Given

F(x) = 5x⁴ for 0<x<1 and 0 otherwise

f(y)= 2y³ +y for 0<y<1 and 0 otherwise

the joint p.d.f is given by

f(x,y) = f(x) * f(y)= 5x⁴(2y³ +y ) 0<x<1 , 0<y<1 , 0 otherwise

The joint pdf is found by multiplying the marginal pdfs.

The two random variables are said to be statistically independent if the joint probability function can be expressed as the product of two marginal functions.

Give a counterexample to show that the following conditional is False.
If a number is divisible by 4, then it is divisible by 12.

Answers

40

Even though 12 is a multiple of 4 it will only divid evenly into numbers that are divisible by 4 and 3
8/12 so it is false

solve this one-variable linear equation
7h-5(3h-8)=-72

Answers

Answer:

h=14

Step-by-step explanation:

7h-5(3h-8)=-72

Combine Like Terms

-8h+40=-72

Subtract 40 on both sides

-8h+40  -40 = -72  -40

Then we get

-8h/8=-112/8 so we divide by 8

h=14

H =14

Steps
7h-5(3h-8)=-72 remove parentheses
7h-15h+40=-72 collect like terms
-8h+40=-72 move constant to right
-8h=-72-40
-8h=-112 divide both sides by 8
-8h/-8 = -112/-8
H=14
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