Mathematics College

find the size of each sample needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume that we want a 95% confidence level and that the error is smaller than 0.03.

Answers

Answer 1

Answer:

sample

Step-by-step explanation:

Related Questions

Use the matrix tool to solve the system of equations. Choose the correct
ordered pair.
4x - 7y = -5
-6x+ 5y = 2
PLEASE HELP

Answers

4x-9y=2 this is the answer

Find the missing term in the
geometric sequence.
13,[ ? 1,208

Answers

Answer:

?=52 or ?=-52

Step-by-step explanation:

Find the geometric mean:

?=sqrt(13*208)

?=sqrt(2704)

?=±52

So ? can be either 52 OR -52. Keep in mind that since we have an odd number of terms in the sequence, -52 is a possible missing term.

13*4=52, 52*4=208

13*-4=-52, -52*-4=208

ABCD ~ QRST
Find the missing side length, m.
B
10 C
Rms
13
12
15
5.2 4.8
6
ST
9
A
22.5
D
m = [?]

Answers

Answer:

m = 4

Step-by-step explanation:

ABCD ~ QRST, therefore, their corresponding side lengths brae proportional. This implies that:

10/m = 22.5/9

Cross multiply

m*22.5 = 9*10

22.5m = 90

Divide both sides by 22.5

m = 90/22.5

m = 4

Answer:M=4 Had this question on my exam.

monika has 3 1/4 cups of rice. each sushi roll she makes required 7/16 of cup of rice to make with the rice she has how many full sushi rolls can monika make​

Answers

Answer:7

Step-by-step explanation: 3 1/4 is equal to 13/4. When dividing fractions, you switch the numerator and denominator in the second fraction and change the symbol to a multiplication symbol. You then multiply straight across and then divide the top number by the bottom number. The whole number is how many times you can divide it equally

Help Plzzzzzzzzzzzzzzzzzzz

Answers

[tex](x+3)^{2}=19[/tex]

I need help with is one. Thank you so much!

Answers

Answer:

B. 252

Step-by-step explanation:

18/50 * 700 = 0.36 * 700 = 252

Don’t mind this I’m just doing this to get points lol

Create an expression equivalent to 4(3x+2y)

Answers

Answer:12x+8y

Step-by-step explanation:Simplify the expression

The expression equivalent to 4(3x+2y) is 12x +8y.

What is the equivalent expression?

Equivalent expressions are expressions that have similar value or worth but do not look the same.

Create an expression equivalent to 4(3x+2y).

The equivalent expression is determined in the following steps given below.

[tex]\rm =4(3x+2y)\\\\=4 \times 3x+4\times 2y\\\\=12x+8y[/tex]

Hence, the expression equivalent to 4(3x+2y) is 12x +8y.

Learn more about equivalent expression here;

https://brainly.com/question/14735698

#SPJ2

The angle measurements in the diagram are represented by the following expressions;

Answers

Answer:

∠A=166°

Step-by-step explanation:

∠A=∠B

7x+40=3x+112

4x=112-40

x=18

∠A=7x+40=166

Which graph represents the equation y = - 4/3 x - 2 ?

Answers

So your y-intercept will be on -2 and your line will go 4 spaces down and 3 spaces to the right. There is a website called Desmond that will help

please help and I think the answer is c.​

Answers

Answer:

answer...............

1. 3, 4
2. odd number, even number
3. 5, 5
4. odd number, odd number
5. 2, 3
6. 1, 3
7. 7, 1

Answers

Answer:

Step-by-step explanation:

4. odd number, odd number

5. 2, 3

6. 1, 3

7. 7, 1

How do I solve this? I need help

Answers

Answer:

d

Step-by-step explanation:

What is the following simplified product? Assume x >0.
(Square root 6x^2 + 4 square root 8x^3) ( Square root 9X - x square 5x^5)?

Answers

Answer:

tthhaatttss a lloott

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

got it right on edge

Trents family has 28 pears and will eat 4 per day

Answers

Answer:

So they will finish in 7 days,.

Step-by-step explanation:

Answer please !! Due in 45 minutes m

Answers

Answer:

(-3,3)

Step-by-step explanation:

Using elimination:

Multiply the first equation by 8 and the second by 5 which equals

40x+56y=48

-40-60y=-60

Now you add them together

40x+(-40x)=0 so that crosses out

56y+(-60y)= -4y

48+(-60)=-12

You now have -4y=-12

Divide by -4

y=3

Now plug in y to any of the equations

5x+7(3)=6

5x+21=6

Subtract 21 from both sides

5x=-15

Divide by 5

x=-3

Your final solution is (-3,3)

Pls help meeeee thank you

Answers

Answer:

Step-by-step explanation: learn yourself yw -dabay


Describe the transformation shown in the graph

Answers

Answer:

270 degrees CCW rotation

Step-by-step explanation:

This is 90 degrees CW or 270 degrees CCW rotation

Correct choice is C or orange tile

Please help, how many terms are in the expression?

Answers

Answer:

4

Step-by-step explanation:

Quadrilateral CDEF is similar to quadrilateral GHIJ. Find the measure of side IJ. Round your answer to the nearest tenth if necessary. Figures are not drawn to scale.

Thank you:)

Answers

Answer:

the answer is 5425.23

Step-by-step explanation:

Since this is a multistep equat you would need a calculator for this

Hey, can someone please help me with this? I don’t know how to solve it.
Thank you.

Answers

Answer:

24

Step-by-step explanation:

15% of customers that come to your
taco truck order two tacos. If 300 guests
come to your store, how many of them
will you expect to order two tacos?
NO LINKS

Answers

Answer:

45

Explanation:

No explanation

A point is shown on the coordinate plane below. Where is the point located? *

Answers

I honestly don’t know sorry

Find the area of the parallelogram:
35 ft
A
24 ft
30 ft
Label your answer.
The area of the parallelogram is

Answers

The answer is 30 feet

PLEASE NO DOWNLOADS AND PLEASE ANSWER IT QUICK

Answers

Answer:

the answer is step 2 I hope it's help

HELP ILL GIVE BRAINLIEST AND NO LINKS

Answers

Answer:

x<9

Step-by-step explanation:

a customer purchases windows for $15,000 using a credit card. If the interest is compounded monthly at a rate of 16% per year, how much interest will be charged at the end of three years?​

Answers

Answer:

≈ $9164.35

Step-by-step explanation:

The future amount A is calculated as

A = P [tex](1+\frac{r}{n}) ^{nt}[/tex]

P is the Principle

r is interest rate

n is number of times per year compounding happens

t is the number of years

Here P = 15000 , r = 16% = 0.16, n = 12 , t = 3

A = 15000 [tex](1+\frac{0.16}{12}) ^{(12(3))}[/tex]

   = 15000 ([tex](1.01333)^{36}[/tex]

   ≈ 24164.35

Interest paid = $24164.35 - $15000 = $9164.35

Answer:

The future amount A is calculated as

A = P (1+\frac{r}{n}) ^{nt}(1+nr)nt

P is the Principle

r is interest rate

n is number of times per year compounding happens

t is the number of years

2- Describe the cross section

Answers

The cross-section cut by the plane yields a quadrilateral with length and width equal to the length and width of the face that is parallel to the plane.

help plz plz plz ill give brain​

Answers

Answer:
5 Hours
Step-by-step explanation:
Given :- 2 hours can be earned each day if she eats all of her vegetables and does all of her chores.
Saved hours at the start of the week = 3 hours
Hours earned in 4 days = 2 hours × 4
= 8 hours
Hours used in 4 days = 6 hours
Hours left after 4 days = Saved hours at the start of the week + Hours earned in 4 days - Hours used in 4 days
Hours left after 4 days = 3 + 8 - 6
= 5 hours

WILL NAME BRAINLIST PLEASE
Use the table to write a linear function that relates y to x . PLEASE NO HACKERS
y=

Answers

Answer:

x = -4y

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

3(x-4)^2=27 solution

Answers

Answer:

x = 11

x = 7

Step-by-step explanation:

divide each side by 3 to get:

(x-4)² = 9

(x-4)² is the difference of two squares and has these factors:

(x+2)(x-2) = 9

x + 2 = 9;  x = 7

x - 2 = 9;  x = 11

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