Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = 2x2 + 1x - 21

A. (3, 0), (, 0), (0,-21)
B. (-7, 0), (, 0), (0,-21)
C. (3, 0), (, 0), (0,21)
D. (-7, 0), (, 0), (0,21)


Answer: A

Mathematics

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Multiply and simplify. ? 

A.
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C.
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Solve the linear programming problem.Maximize   5x1 + 8x2subject to x1 - x2 ? 2 -x1 + 6x2 ? -3and x1 ? 0, x2 ? 0

A. Unbounded
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C. Maximum =  when x1 =  and x2 = - 
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A. 2,645 B. 2,635 C. 2,535 D. 2,735

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