Evaluate the expression. Round your result to two decimal places.
?
?
A. 1.87
B. -2.13
C. -1.13
D. 0.87
E. -0.13
Answer: E
Mathematics
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Solve the problem.Suppose that the radius r and volume V = 
?r3 of a sphere are differentiable functions of t. Write an equation that relates dV/dt to dr/dt.
A. 
= 4?r2
B. 
= 4?
C. 
= 
?r2
D. 
= 3r2
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Graph the function y = g(x), given the graph of y = f(x). g(x) = f
A. 
B. 
C. 
D. 
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The polar coordinates of point P are given. Find all of its polar coordinates.P = (9, 75°)
A. (9, 75° + 360n°) or (-9, 75° + 360n°) B. (9, 75° + 180n°) or (-9, 75° + 180n°) C. (9, 75° + 360n°) or (9, -75° + (2n + 1)180°) D. (9, 75° + 360n°) or (-9, 75° + (2n + 1)180°)
Mathematics
Divide. Write the quotient in lowest terms.
÷ 
A. 
B. 
C. - 
D. - 14
Mathematics