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3 years ago

Which law would you use to simplify the expression

Mathematics

2 answers:

Lisa [10]3 years ago

5 0

Answer:

Product of powers

Step-by-step explanation:

vodka [1.7K]3 years ago

4 0

Power of product is the answer

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Solve this equation x-3=4

MAXImum [283]

Answer:

x-3= 4

x= 4+3

Answer: x= 7

5 0

3 years ago

Read 2 more answers

Describe the sampling distribution of p(hat). Assume the size of the population is 30,000.

Naya [18.7K]

Answer:

a) $\mathbf{\mu_ \hat p = 0.6}$

b) $\mathbf{\sigma_p =0.01732}$

Step-by-step explanation:

Given that:

population mean $\mu$ = 30,000

sample size n = 800

population proportion p = 0.6

The mean of the the sampling distribution is equal to the population proportion.

$\mu_ \hat p = p$

$\mathbf{\mu_ \hat p = 0.6}$

The standard deviation of the sampling distribution can be estimated by using the formula:

$\sigma_p = \sqrt{\dfrac{p(1-p)}{n}}$

$\sigma_p = \sqrt{\dfrac{0.6(1-0.6)}{800}}$

$\sigma_p = \sqrt{\dfrac{0.6(0.4)}{800}}$

$\sigma_p = \sqrt{\dfrac{0.24}{800}}$

$\sigma_p = \sqrt{3 \times 10^{-4}}$

$\mathbf{\sigma_p =0.01732}$

7 0

3 years ago

A rectangle has perimeter 20m. Express the area of the rectangle as a function of the length of one of its sides.

MArishka [77]

<h2>Area of rectangle is 10L-L²</h2>

Step-by-step explanation:

Let L be the length and W be the width.

Perimeter of rectangle = 2 ( L + W )

That is

2 ( L + W ) = 20

L + W = 10

W = 10 - L

We need to express the area of the rectangle as a function of the length of one of its sides.

Area = Length x Width

A = LW

A = L(10 - L) = 10L-L²

Area of rectangle is 10L-L²

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3 years ago

Edward can run mile in 300 seconds. What is Edward's unit rate?

Yakvenalex [24]

Answer:

b im not sure

Step-by-step explanation:

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3 years ago

I need help plz do each problem

Aleks [24]

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2 years ago