3 years ago

PLATO! 17 POINTS! WILL MARK BRAINLIEST!

Mathematics

1 answer:

Korolek [52]3 years ago

6 0

The answer is between B and C.

There are two different versions of standard deviation. The population standard deviation will use the formula shown in choice C, while the sample standard deviation uses the formula in choice B.

The instructions arent fully clear which your teacher wants. I would ask them for further clarification. I'm sorry I'm not more helpful.

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What is the value of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B81%5E4%7D%7B3%5E5%7D" id="TexFormula1" title="\frac{81^4}{3^5}"

IRISSAK [1]

Answer: $3^1^1\\$

Step-by-step explanation:

$\frac{81^4}{3^5}$

$\frac{3^1^6}{3^5}$

The base is same power can be add or subtract

$3^1^6^-^5$

$3^1^1$

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2 years ago

4(x−0.8)=3.8x−5.8 PLZZZ ANSWER FAST!

Hunter-Best [27]

To find the answer:
$4(x - 0.8) = 3.8x - 5.8 \\ 4x - 3.2 = 3.8x - 5.8 \\ 4x - 3.8x = - 5.8 + 3.2 \\ 0.2x = - 2.6 \\ x = - \frac{ 2.6}{0.2} \\ x = - 13$

Therefore, x=-13.

Hope it helps!

5 0

3 years ago

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(2w-5)(w+7) so far I got 2w^2 + 9w + ?

FromTheMoon [43]

Answer:

=2w2+9w−35

Step-by-step explanation:

(2w+−5)(w+7)

(2w)(w)+(2w)(7)+(−5)(w)+(−5)(7)

2w2+14w−5w−35

2w2+9w−35

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2 years ago

Find the measure of angle

Pie

Answer:

angle AEF is 60 degrees

Step-by-step explanation:

120 - 90 = 30

90 - 30 = 60

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3 years ago