Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = -x2 - 5
A. vertex (5, 0); axis x = 5
B. vertex (-5, 0); axis x = -5
C. vertex (0, -5); axis x = 0
D. vertex (0, 5); axis x = 0
Answer: C
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Multiply.(2 + 2i)(4 - 5i)
A. -2 + 18i B. 18 + 2i C. -10i2 - 2i + 8 D. 18 - 2i
Solve the problem.A teenager starts a company selling personalized mouse pads. The profit function, in dollars, for producing and selling x mouse pads is f(x) = -0.5x2 + 20x - 30, whose graph is shown. 
How many mouse pads will give the maximum profit?
A. 38 mouse pads B. 30 mouse pads C. 2 mouse pads D. 20 mouse pads
Write the number in words.302,038
A. three hundred two thousand, thirty-eight B. three hundred two thousand, thirty-eight hundred C. three hundred thousand, two hundred thirty-eight D. thirty-two thousand, thirty-eight
Rewrite the expression with positive exponents and simplify.
?
A. ?
B. 
C. 
D. 
E. 