Answer:
<em><u>t</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>8</u></em><em><u> </u></em>
<em><u>hope</u></em><em><u> </u></em><em><u>it help you</u></em>
<em><u>thanks</u></em><em><u>!</u></em>
Answer: 18
Step-by-step explanation:
The formula to find the minimum sample size is given by :_

, where
= population standard deviation.
z*= critical z-value.
E= Margin of error.
Given : 
E= ± 8
We know that critical value corresponding to 99% confidence level = z*=2.576 [Using z-table]
Then, the required sample size would be :


[Round to next integer.]
Hence, the required minimum sample size = 18
Answer:
200$ in first year
Step-by-step explanation:
Domain is [-10,∞)
2 is included , only at x=2 new function begins
Range is the values of y , so range is [-7]∪[-4,6
I think, it should be like this.
I think it's equal
____________