Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes
B. No
Answer: B
Mathematics
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Find 
for the given function.y = 
4
A. 12 
2
B. - 
3
C. 
2 + 
3
D. - 
2 + 
3
Mathematics
Simplify. Assume that variables can represent any value.
A. -5y - 5 B. ?5y + 5? C. 5?y? + 5 D. 5y + 5
Mathematics
Solve the problem.Find the value for x in the rectangular prism. Use exact values. 
7 in.
A. 3
in.
B. 
in.
C. 2
in.
D. 310 in.
Mathematics
Factor the trinomial.z2 - 2z - 80
A. (z + 8)(z - 10) B. (z - 80)(z + 1) C. (z - 8)(z + 10) D. (z - 8)(z - 10)
Mathematics