Simplify.(-2a)2
A. -4a2
B. 4a2
C. -4a
D. 4a
Answer: B
Mathematics
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The graph of a polar equation is given. Select the polar equation for the graph. 
A. r sin ? = -1 B. r = -2 cos ? C. r = -1 D. r = -2 sin ?
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State whether the given function is linear and constant, linear but not constant, or nonlinear.f(x) = -9x3 - 5x + 17
A. linear, but not constant B. none of these C. nonlinear D. linear, constant
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Multiply.Let G(x) = 9x - 
. Find [G(x)]2
A. 81x2 - 
x + 
B. 81x2 - 
x - 
C. 9x2 - 
D. 81x2 + 
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Solve the problem.A technician has readings that take 
minute each to read and record. How many readings can be completed in 54 minutes?
A. 36 readings B. 18 readings C. 20 readings D. 81 readings
Mathematics