Solve the equation.(x + 3)2 = 15
A. 12
B. -3 - 
, -3 + 
C. 3 - 
, 3 + 
D. - 
, 
Answer: B
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Use the power rule and the power of a product or quotient rule to simplify the expression.
3
A. 
B. x3y3
C. 
D. 
Provide an appropriate response.How many one-to-one correspondences are there between two sets with 4 elements each?
A. 2 B. None C. 24 D. 6
Indicate what must be done to each side of the equation in order to isolate the variable.-2x = -8
A. Divide by -8
B. Multiply by - 
C. Divide by -2
D. Divide by 2
Use the two-stage method to solve.Find x1 ? 0, x2 ? 0, x3 ? 0 such that x1 + x2 + x3 ? 125 x1 + x2 + x3 ? 75and z = 2x1 + 5x2 + 3x3 is maximized.
A. x2 = 100, x3 = 25, x1 = 0, z = 575 B. x1 = 125, x2 = 0, x3 = 0, z = 250 C. x1 = 0, x2 = 0, x3 = 125, z = 375 D. x2 = 125, x1 = 0, x3 = 0, z = 625