Solve the problem.Find the center of mass of the region common to the spheres ? = 2
cos ? and ? = 2.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Answer: D
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Decompose into partial fractions.
A. 
- 
B. 
- 
C. 
+ 
D. 
- 
Solve the radical equation.
- 
= 1
A. {3} B. {3, -1} C. {-3, -1} D. no real solution
Set up the linear programming problem.The Jillson's have up to $75,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yielding 6% and that no more than $20,000 should be invested in more volatile bonds yielding 12%.(a) Using x to denote the amount of money invested in the stable bonds and y the amount invested in the more volatile bonds, write a system of linear inequalities that describes the possible amounts of each investment.(b) Graph the system and label the corner points. 
What will be an ideal response?
Find the reciprocal, if it exists.0.4
A. 1 B. -2.5 C. 2.5 D. -0.4