Evaluate the expression.
21
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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
The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = 2x B. f(x) = -2-x C. f(x) = -2x D. f(x) = 2-x
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).2x + 3y = 6
A. 2 sin ? + 3 cos ? = 6r B. 2 cos ? + 3 sin ? = 6r C. r(2 cos ? + 3 sin ?) = 6 D. r(2 sin ? + 3 cos ?) = 6
Solve the problem.John owns a hot dog stand. His profit, in dollars, is given by the function 
where x is the number of hot dogs sold. What is the most he can earn?
A. $108 B. $49 C. $150 D. $87