Answer:
You must mix 2.67 gals. of pure alcohol to obtain the desired mixture.
Area of sector CAD = 72 / 360 x pi x 6^2 = 7.2pi = 22.6195 in^2
Therefore, area of segment CED = 22.6195 - 17.18 = 5.44 in^2
Answer:
We have to find the 90% confidence interval for the mean
Given sample size
Sample mean
Population standard deviation
Here the confidence level is 90% then
And
The 90% confidence interval is
Here is the critical value at 0.05
From the tables
Now the 90% confidence interval is =
=
=(3840.44, 4133.56)
Hence the 90% confidence interval for the mean is (3840.44, 4133.56)
Answer:
what is it man
Step-by-step explanation:
im sure u solved it by now
