Solve the problem.Rectangle A is 40 by 120. Rectangle B is a gnomon to rectangle A. The dimensions of rectangle B are
A. 120 by 320.
B. 40 by 240.
C. 40 by 160.
D. 120 by 160.
E. none of these
Answer: A
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Solve the problem.After 5 years, the balance, A, in an account with principal P and interest rate r compounded annually is given by the formula 
Simplify this formula by factoring.
A. A = P(1 + r)5r B. A = (P + Pr)(1 + r)4 C. A = P(1 + Pr)(1 + r)4 D. A = P(1 + r)5
Solve the equation by completing the square.5x2 - 2x - 1 = 0
A. 
B. 
C. 
D. 
Solve the problem.Find an equation for the level curve of the function f(x, y) = 
that passes through the point 
.
A. 
= 
B. x = 2y
C. 
? 
D. 
= 2
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: 2, multiplicity 2; -2, multiplicity 2; degree 4
A. f(x) = x4 + 4x3 - 8x2 + 8x - 16 B. f(x) = x4 - 4x3 + 8x2 - 8x + 16 C. f(x) = x4 + 8x2 + 16 D. f(x) = x4 - 8x2 + 16