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3 years ago

Jus so yall know im happily taken now:)))

Mathematics

2 answers:

Volgvan3 years ago

8 0

Answer:

Step-by-step explanation:

Simple she/he was so single and then BOOM she/he in a realtion ship :)

andre [41]3 years ago

3 0

Answer:

that's good for you xD congrats

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If ƒ(x ) = 3x + 1 and ƒ -1 = , then ƒ -1(7) =

Elden [556K]

F(x) = 3x + 1

let f(x) = y

y = 3x + 1

y - 1 = 3x

3x = y - 1

x = (y - 1)/3

From y = f(x), x = f⁻¹(y)

<span>x = (y - 1)/3
</span>
f⁻¹(y) = (y - 1)/3

f⁻¹(7) = <span>(7 - 1)/3 = 6/3 = 2

</span>f⁻¹(7)<span> = 2</span>

6 0

3 years ago

Find the exact value of the following. -3(1.2) ^2 =

weeeeeb [17]

Answer:

-4.32 would be the answer

i hope this helps you

5 0

3 years ago

A simple random sample of 64 observations was taken from a large population. The population standard deviation is 120. The sampl

jeka94

Answer:

<h3>The standard error of the mean is <u>15</u></h3>

Step-by-step explanation:

Given that a simple random sample of 64 observations was taken from a large population.

Hence it can be written as n=64

The population standard deviation is 120.

It can be written as $\sigma_{\overline{X}}=120$

The sample mean was determined to be 320.

It can be written as $\overline{X}=\mu =320$

<h3>To find the standard error of the mean :</h3>

The formula for the standard error of the mean is given by

$\sigma_{\overline{X}}=\frac{\sigma}{\sqrt{n}}$

Now substitute the values in the formula we get

$\sigma_{\overline{X}}=\frac{120}{\sqrt{64}}$

$=\frac{120}{8}$

$=15$

$\sigma_{\overline{X}}=15$

<h3>∴ The standard error of the mean is 15</h3>

3 0

3 years ago

HELP NEEDED! ^^

____ [38]

Answer:

B - 18

Step-by-step explanation:

Area of a right triangle

1/2 * b * h

1/2 * 9 * 4

1/2 * 36

4 0

3 years ago

A, b, c, d, or e <br> Please help

Norma-Jean [14]

Answer:

A or D is the answers for the question

Step-by-step explanation:

please give me brainlest and follow me

4 0

3 years ago

Read 2 more answers