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kondor19780726 [428]
4 years ago
14

Select the three expressions that are equivalent to 9^4

Mathematics
2 answers:
Aleks [24]4 years ago
5 0
Mmmmmmmmmmmmmm morning
Alika [10]4 years ago
4 0

Answer:

B and D

Step-by-step explanation:

the answer is B and D

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Solve For L: A = L ⋅ W ⋅ H<br><br> L=aw/h<br><br> L=wh/a<br><br> L=a/wh<br><br> L=w/ha
bonufazy [111]
Ok so what you're trying to do is get L by itself so to do this you move everything to the other side:
A=L*WH
\frac{A}{WH}=L
So you answer would be: C
8 0
3 years ago
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Help please will mark brainliest!!!
wel
93.9 or 17702.3 I think it’s the long 1 tho
7 0
3 years ago
In a large population of adults, the mean IQ is 112 with a standard deviation of 20. Suppose 200 adults are randomly selected fo
Snezhnost [94]

Answer:

(c)approximately Normal, mean 112, standard deviation 1.414.

Step-by-step explanation:

To solve this problem, we have to understand the Central Limit Theorem

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem, we have that:

\mu = 112, \sigma = 20, n = 200

Using the Central Limit Theorem

The distribution of the sample mean IQ is approximately Normal.

With mean 112

With standard deviation s = \frac{20}{\sqrt{200}} = 1.414

So the correct answer is:

(c)approximately Normal, mean 112, standard deviation 1.414.

4 0
3 years ago
Hannah received $30 for her birthday and bought 3 shirts that were all the same price. If she had $9 left over, which equation s
sukhopar [10]
Equation:
9+3x=30

Answer:
9+3x=30

Subtract 9 from each side.
3x=21

divide by 3 on each side.
x=7

Each shirt cost $7.
3 0
3 years ago
Find the area please, round to the nearest tenth if necessary. If you’re correct I’ll brainliest you
Tanzania [10]

Answer:

21

Step-by-step explanation:

(5x5) the big square - (2x2) the small square

25-4=21

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3 years ago
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