Expand, where i2 = -1.
4
A. -1
B. 1
C. 1 - i
D. 1 + i
Answer: A
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Solve the problem.The graph below shows the first derivative of a function y = f(x). Select a possible graph f that passes through the point P. f'
A. 
B. 
C. 
D. 
Write the equation of the quadratic function whose graph is a parabola containing the given points.(0, 3), (3, 15), (-3, 27)
A. y = 2x2 + 2x +1 B. y = 3x2 - 2x + 3 C. y = 2x2 - x + 3 D. y = 2x2 - 2x + 3
Round the money amount to the specified place.$2.485 to the nearest cent.
A. $2.49 B. $2.48 C. $2.5 D. $2
Solve the problem.A rectangular piece of cardboard measuring 15 inches by 29 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 3.15 in. B. 23.04 in. C. 11.52 in. D. 13.79 in.