Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B ? A-1
B. B = A-1
Answer: A
Mathematics
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Answer the question.If your salary is 25% higher than mine, then how does my salary compare to your salary?
A. My salary is 75% of yours. B. My salary is 20% less than yours. C. My salary is 125% of yours. D. My salary is 25% less than yours.
Mathematics
Graph the piecewise-defined function 
if 
, and 
style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_9c8fcea6cc884ff495c79e382" /> for 
.
?
What will be an ideal response?
Mathematics
Multiply.(-x)(x - 7y)(x - 9y)
A. -x2 + 16xy - 63y2 B. -x3 - 16xy + 63y2 C. -x3 + 16x2y - 63xy2 D. -x3 - 16x2y + 63xy2
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics