Use the associative law of multiplication to write an equivalent expression.5(ab)
A. (5a)b
B. 5(ba)
C. a(5b)
D. 5a + 5b
Answer: A
Mathematics
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Decide whether or not the matrices are inverses of each other.
and 
A. Yes B. No
Mathematics
?Which of the following numbers completes the pattern of the sequence: ?1, 8, 22, 43, ___ ?
A. ?50 B. ?71 C. ?43 D. ?64 E. ?None of the above.?
Mathematics
Find the following. Assume that the letter can represent any real number.
A. 14
B. 196
C. 14y
D. -14
Mathematics
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.
x = -7; multiply by
A. 
B. -7
C. -8
D. - 
Mathematics