Answer:
the vertex is (-1,4)
Step-by-step explanation:
Y=-5+1/3
Y=-4.66..
Hope it helps pls thank
Answer:
Step-by-step explanation:
We are given the following in the question:
Significance level = 0.01
Width of interval = 0.1
Population variance = 
We have to find the sample size so that the width of the confidence interval is no larger than 0.1

Formula for sample size:

where E is the margin of error. Since the confidence interval width is 0.1,

Putting these values in the equation:

So, the above expression helps us to calculate the sample size so that the width of the confidence interval is no larger than 0.1 for different sample variances.
456×100÷1700≈26.8
607×100÷1700≈35.7
637×100÷1700≈37.4
So the answer is C)27%, 36%, 37%.
Hope this helped!
The answer is 73.5792 hope that helps you.