Simplify.
A. 
B. 1
C. 1 - a2
D. 
Answer: D
Mathematics
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Solve the problem.The five sales people at Southwest Appliances earned commissions last year of 
, 
, 
, 
, and 
. Find the mean commission.
A. $31,680 B. $27,360 C. $30,240 D. $28,800
Mathematics
The top of a ladder slides down a vertical wall at a rate of 0.15 m/s . At the moment when the bottom of the ladder is 1.5 m from the wall, it slides away from the wall at a rate of 0.3 m/s. How long is the ladder?
What will be an ideal response?
Mathematics
Perform the matrix operation.Given A = 
and B = 
, find 2A + 3B.
A. 
B. 
C. 
D. 
Mathematics
Find the domain of the composite function f?g.f(x) = 6x + 36,g(x) = x + 4
A. (-?, -10) or (-10, ?) B. (-?, -6) or (-6, -4) (-4, ?) C. (-?, ?) D. (-?, 10) or (10, ?)
Mathematics