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Akimi4 [234]
3 years ago
6

I would really appreciate some help... branliest to whoever can

Mathematics
1 answer:
Margaret [11]3 years ago
5 0

Answer:

1. 6 to the power of 8

2. 9765625

3. 2 to the power of 4

4. 1296

5. I do not know 5 sorry.

6. 117649

Step-by-step explanation:

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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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Subtract from 1:  1-0.98 = 0.02
Divide both sides by 2:  0.02/2 = 0.01
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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}}
\\
\\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:
\frac{0.08(0.92)}{(\frac{0.04}{2.33})^2}=n
\\
\\249.73=n
\\n\approx 250
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3 years ago
If f(x) = StartFraction x Over 2 EndFraction + 8, what is f(x) when x = 10?
nikdorinn [45]

Answer:

13

Step-by-step explanation:

test edge2020

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8 0
3 years ago
Can someone please help me?
Talja [164]
26-20 because there were 20 cucumber seeds. 1/6 is 6. 6•6=36. 36-6=seeds left over. 30 seeds left.
7 0
4 years ago
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