V(t) = πr^2h
V'(t) = π(2rr'h + r^2h')
V'(t) = π(2(5)(-2)(7) + 5^2(8)
V'(t) = π(-140 + 200)
V'(t) = 60π in^3
Ok, so if you do the math.. 8³ •8^-5 =512.0000305
So, in conclusion... the student is correct..
Answer:
225.5$
Step-by-step explanation:
Answer: 1.960
Step-by-step explanation:
The value of z we use to calculate a confidence interval with a (
) confidence level is a two-tailed test value i.e. represented by :-
![z_{\alpha/2}](https://tex.z-dn.net/?f=z_%7B%5Calpha%2F2%7D)
Given : The level of confidence: ![1-\alpha=0.95](https://tex.z-dn.net/?f=1-%5Calpha%3D0.95)
Then, significance level : ![\alpha: 1-0.95=0.05](https://tex.z-dn.net/?f=%5Calpha%3A%201-0.95%3D0.05)
With the help of standard normal distribution table for z , we have
![z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.960](https://tex.z-dn.net/?f=z_%7B%5Calpha%2F2%7D%3Dz_%7B0.05%2F2%7D%3Dz_%7B0.025%7D%3D1.960)
Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960
Answer:
Jenna is correct.
Step-by-step explanation:
I will assume that is what you meant.
Jenna is correct .
The square root of 4 ( = 2) is rational but,
for example, 2 is a rational number but the square root of 2 is irrational. Try finding the square root of 2 on your calculator. Your answer will be something like 1.414213562 but that decimal fraction goes on without bounds. No calculator will ever have enough memory to store that number!!