Factor.z2 - 4z + 4
A. (z + 2)(z - 2)
B. (z + 4)(z - 4)
C. (z + 2)2
D. (z - 2)2
Answer: D
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Mathematics
Graph the solution set of the system of inequalities.
A. 
B. 
C. 
D. 
Mathematics
Simplify.
÷ 
A. 9
B. 
C. 
D. 
Mathematics
Solve the problem.Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were $5500 in 1982 and $57,000 in 1987. Let 
represent 1982. Find the equation giving yearly sales 
.
A. S(x) = 51,500x + 57,000 B. S(x) = 51,500x + 5500 C. S(x) = 10,300x + 5500 D. S(x) = 10,300x + 57,000
Mathematics