Convert the polar equation to a rectangular equation.r = 
A. 4x2 + 4y2 + 4x - 4 = 0
B. 3x2 + 4y2 + 4x - 4 = 0
C. 5x2 + 4y2 - 4x - 4 = 0
D. 4x2 + 3y2 + 4y - 4 = 0
Answer: D
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Find the product and write the answer in simplest form. Assume variables represent nonnegative values.
? 
A. 
B. 
C. 
D. 
Convert from cents to dollars.325¢
A. $3.25 B. $3250.00 C. $0.325 D. $32.50
Provide an appropriate response.If an investor purchased 50 shares of Pearson Education stock at $85 per share, 90 shares at $105 per share, 120 shares at $110 per share and another 75 shares at $130 per share. What is the mean cost per share?
A. $110.25 B. $109.40 C. $130.50 D. $105.50
Solve the problem.The function f(x) = x3 describes the volume of a cube, f(x), in cubic inches, whose length, width, and height each measure x inches. If x is changing, find the instantaneous rate of change of the volume with respect to x at the moment when x = 9 inches.
A. 245.71 cubic inches per inch B. 243 cubic inches per inch C. 2187 cubic inches per inch D. 27 cubic inches per inch