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2 years ago

HELP PLZ IM CRYING I DONT WANT TO FAIL MY TEST PLZ HELP!!!!!!!!!

Mathematics

1 answer:

ivann1987 [24]2 years ago

4 0

Answer:

As the x values go to positive infinity, the functions values go to positive infinity

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K(a)= 4a-4, Find k(-9)

FromTheMoon [43]

We simply replace a with -9

k(-9) = 4 * -9 - 4

k(-9) = -40

5 0

3 years ago

Please answer quick!

Nina [5.8K]

Answer:

C on edge 2021

Step-by-step explanation:

8 0

3 years ago

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An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

MrRa [10]

Answer:

85% level of the confidence interval is

(26.337, 26.662)

Step-by-step explanation:

Explanation:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

Critical value Z₀.₁₅ = 1.036

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

$(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })$

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

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3 years ago

It's a ven dyagram question pls help

slamgirl [31]

Answer:

a) A U B = {21,23,24,25,27,29,30,31 }

b) A n C = {24,30}

Step-by-step explanation:

A {21,24,27,30}

B {21,23,25,27,29,31}

C {20,22,24,26,28,30,32}

a) A U B = {21,23,24,25,27,29,30,31 }

b) A n C = {24,30}

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3 years ago

I need help it’s geometry

Genrish500 [490]

Answer:

666666666666666666666666

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3 years ago

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