Give the domain and range of the relation (10,-3),(12,3),(-8,-7),(6,-1)

Mathematics

1 answer:

Iteru [2.4K]2 years ago

6 0

Domain: {10, 12, -8, 6}

Range: {-3, 3, -7, -1}

There is one value of <em>y</em><em> </em>for every value of <em>x</em>.

This relation is a function.

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According to the U.S. Department of Education. Institute of Education Sciences, National Center for Education Statistics 1,026,0

Andreyy89

Answer:

The correct option is C) 21.1 and 0.68

Step-by-step explanation:

Consider the provided information.

The mean composite score was 21.1 with a standard deviation of 4.8. The ACT composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school.

Therefore μ = 21.1 and σ = 4.8

It is given that the sample of 50 students;

Thus, sample size ( n ) = 50

According to the central limit theorem,

$\mu_{\bar x}=\mu\ and \ \sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}$

Therefore

$\mu_{\bar x}=21.1$

$\sigma_{\bar x}=\frac{4.8}{\sqrt{50}}$

$\sigma_{\bar x}=0.68$

Hence, the correct option is C) 21.1 and 0.68

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3 years ago

I need help on this math problem

xxMikexx [17]

The answer is A, it’s the only one that makes sense

4 0

2 years ago

Read 2 more answers

Jason is planning on retiring after 25 years of employment. For the last three years he

Flauer [41]

Jason's monthly pension is the product of the final three-year average salary is $32,625. Then the correct option is C.

<h3>What is a monthly pension?</h3>

Jason is planning on retiring after 25 years of employment.

For the last three years he has made $60,000; $56,000; and $58,000.

His employer offers a defined benefit plan in which the annual pension is calculated as the product of the final three-year average salary, the number of years of service, and a 2.25% multiplier.

Then Jason's monthly pension will be

$\rm Monthly \ pension = \dfrac{(60,000+56,000+58,000)}{12} \times 2.25\\\\Monthly \ pension = 14500 \times 2.25\\\\Monthly \ pension = \$ \ 32,625$