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tatuchka [14]
3 years ago
7

Please help somebody

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0

Answer:

A. 3a^{2}b^{4}

Step-by-step explanation:

area = length * width

length = area/width

L = \dfrac{A}{W}

L = \dfrac{15a^3b^6}{5ab^2}

L = \dfrac{15}{5} \times \dfrac{a^3}{a} \times \dfrac{b^6}{b^2}

L = 3 \times a^{3 - 1} \times b^{6 - 2}

L = 3 \times a^{2} \times b^{4}

L = 3a^{2}b^{4}

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vovikov84 [41]

1/14 goes into 6 7/10, 93.8 times

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3 years ago
Read 2 more answers
Mr. Starnes wondered what proportion of Katy Perry's Twitter followers are
Citrus2011 [14]

Answer and Step-by-step explanation:

To calculate a confidence interval for a proportion:

1) Determine the proportion

p=\frac{308}{500}

p = 0.616

2) A 90% confidence interval has z-score that is 1.645.

3) Calculate margin of error

ME=\sqrt{\frac{p(1-p)}{n} }

where

n is the sample size

So

ME=\sqrt{\frac{0.616(1-0.616)}{500} }

ME=\sqrt{\frac{0.616(0.384)}{500} }

ME = 0.02175

Then the interval is given by

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0.62 ± 1.645(0.02175)

0.62 ± 0.035

The interval will be

0.585 < p < 0.655

What this means is that we are 90% confident that the true proportion of Katy Perry's Twitter female followers is between 0.585 and 0.655.

5 0
3 years ago
It has been estimated that in the year 2015 the population of the world will be 7,175,000,000. Write scientific notation for the
mylen [45]
7,175,000,000 = 7.175 x 10^9
7 0
4 years ago
What is the radius of a cylinder with a height of 5 inches and volume of 62.8in^3 ?
never [62]
Square root 62.8. Which will give you 7.9.
7.9 divided by pi times 5.
7.9 divided by 15.7.
The radius would be 1.9 if left as a decimal, but rounded to the whole number would be 2.
Hope this helps and answers your problem!!!
6 0
3 years ago
Pls help me 10 points
Ghella [55]

Answer:

the answer is one fourth 1/4

can u mark me as brainliest

4 0
3 years ago
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