Find the axis of symmetry of the function.f(x) = x2 - 12x + 40
A. x = -6
B. x = 6
C. x = 4
D. x = 0
Answer: B
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Determine whether A = B, A ? B, B ? A, A ? B, B ? A, or if none of these applies.A = {x | x ? N and x > 9}B = {x | x ? N and 2 < x ? 9}
A. A ? B B. None of these C. B ? A D. A ? B and A ? B
Find the quotient and the remainder.x4 + 81 divided by x - 3
A. x3 + 3x2 + 9x + 27; remainder 0 B. x3 - 3x2 + 9x - 27; remainder 162 C. x3 + 3x2 + 9x + 27; remainder 81 D. x3 + 3x2 + 9x + 27; remainder 162
Solve the problem.
What variable is represented by the y-axis?
A. Sales, in millions of dollars B. Months of the year C. Years, starting from 2006 D. Sales, in thousands of dollars
Express the statement as an equation involving the indicated variables.The surface area S of a sphere is 4 times ? times the square of the radius r.
A. S = 4?r
B. S = ?r2
C. S = 4? 
D. S = 4?r2