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. (
, 
, 
) = 
Answer: A
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Use the Rule of 78 to find the payoff amount for the loan paid in full before the date of maturity.Amount Financed: $25,000 Regular Monthly Payment: $661.46Total Number of Payments scheduled: 48Loan repaid in full instead of making: 30th
A. $11,586.20 B. $11,689.48 C. $10,924.74 D. $10,990.69
Simplify the expression.
A. 
B. 
C. 1
D. 
Solve the problem.A tower is supported by a guy wire 
long. The wire makes an angle of 
with respect to the ground, and the distance from the point where the wire is attached to the ground and the tower is 
Approximate the height of the tower to the nearest tenth of a foot.
A. 489.2 ft B. 391.8 ft C. 531.3 ft D. 332.5 ft
Use rational exponents to simplify. Write the answer in radical notation if appropriate.
A. 
B. x8
C. x4
D. 