A = 84.825 because the area of a circle is 113.1 and 1/4 of it is missing.
Answer:
Step-by-step explanation:
Use the formula to find the z-score, then go to the table that will give you the probability that the value is less than this z-score.

The probability that the value lies to the left of 1 on a standard bell curve is 84.1345%, or 84%, the third choice down.
I hope this helps you
Volume = pi.r^2.h
36= pi.r^2.h
Volume =pi.r^2.3/4h
Volume =pi.r^2.h.3/4
Volume =36.3/4
Volume =9.3
Volume =27