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Gala2k [10]
2 years ago
8

Simplify 25(14–27)+25÷16. a 28/5 b16/5 c 31/5 d 36/5

Mathematics
1 answer:
serg [7]2 years ago
8 0

Answer:

-323.4375

Step-by-step explanation:

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Which monomial is a perfect cube? <br> 16x6<br> 27x8 <br> 32x12 <br> 64x6
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"a pollster wishes to estimate the number of left-handed scientists. how large of a sample is needed in order to be 98% confiden
nadezda [96]
The sample size should be 250.

Our margin of error is 4%, or 0.04.  We use the formula

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

To find the z-score:
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Divide both sides by 2:  0.02/2 = 0.01
Subtract from 1:  1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value has a z-score of approximately 2.33.  Using this, our margin of error and our proportion, we have:

0.04=2.33\sqrt{\frac{0.08(1-0.08)}{n}}&#10;\\&#10;\\0.04=2.33\sqrt{\frac{0.08(0.92)}{n}}

Divide both sides by 2.33:
\frac{0.04}{2.33}=\sqrt{\frac{0.08(0.92)}{n}}

Square both sides:
(\frac{0.04}{2.33})^2=\frac{0.08(0.92)}{n}

Multiply both sides by n:
(\frac{0.04}{2.33})^2n=0.08(0.92)

Divide both sides to isolate n:
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3 years ago
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Lana71 [14]

Answer:

(g+6)/5

Step-by-step explanation:

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