Evaluate the expression for the given replacement values.x4 - (y - z) for x = 3, y = 3, z = 2
A. 7
B. 11
C. 80
D. 76
Answer: C
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Find the volume of the indicated region.the region bounded below by the xy-plane, laterally by the cylinder 
and above by the plane 
A. 7? B. 196? C. 49? D. 28?
Use the appropriate addition formula to find the exact value of the expression.tan 
A. 2 + 
B. 2 - 
C. 
D. 
Find the expected value.A bus arrives at a bus stop at 10 am, 10 minutes past ten, and 11.00 am. You arrive at the bus stop at random times between 10.00 am and 11.00 am every day, so all arrival times are equally likely. Find your expected waiting time for the bus.[Hint: Find the probability that you will arrive at the bus stop between 10.00 am and 10 minutes past ten and find your mean waiting time in that case. Then find the probability that you will arrive at the bus stop between 10 minutes past ten and 11.00 am and find your mean waiting time in that case.]
A. 21.7 minutes B. 15 minutes C. 22.5 minutes D. 43.3 minutes
Perform the indicated operation
