Find the identical expression for the following.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: E
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Solve the problem.Find the center of mass of the solid enclosed between the cone with equation 
and the plane with equation 
if the density at any point is proportional to the distance from that point to the plane 
.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Perform the indicated operation.
- 
A. 
a - 
b
B. 
a + 
b
C. 
a - 
b
D. 
a + 
b
Find the probability.A bag contains 5 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
A. 
B. 6
C. 
D. 
If two opposite sides of a square are increased by 5 meters and the other sides are decreased by 2 meters, the area of the rectangle that is formed is 60 square meters. Find the area of the original square. ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).