Find the inverse of the matrix (if it exists).A = 
A. A-1 = 
B. No solution
C. A-1 = 
D. A-1 = 
Answer: C
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Solve the problem.Don James wants to invest $65,000 to earn $4650 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $4650 in interest per year?
A. $28,000 in B-rated bonds and $37,000 in a CD B. $37,000 in B-rated bonds and $28,000 in a CD C. $36,000 in B-rated bonds and $29,000 in a CD D. $29,000 in B-rated bonds and $36,000 in a CD
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A sphere with d = 6.4 yd
A. 6.4 yd2 B. 128.8 yd2 C. 137.2 yd2 D. 32.2 yd2
Graph the function.y = (x - 2)2
A. 
B. 
C. 
D. 
Simplify the expression. Assume that all variables represent nonnegative real numbers.-10
- 10
+ 2
A. -950
B. -142
C. 950
D. -10