Multiply.7 ? (-3) ? 7
A. -147
B. 28
C. -28
D. 147
Answer: A
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The rectangular coordinates of a point are given. Find polar coordinates for the point.(-4, 0)
A. 
B. (-4, ?)
C. 
D. (4, ?)
Solve the problem.A function that models the population (in thousands) of children under the age of 18 in a certain town, t years after 2010 is C(t) = 0.0013t2 - 0.163t + 15.82. A function that models the population (in thousands) of adults aged 18 or over of the same town, t years after 2010 is 
Find the equation of a function that models the estimated population of the town t years after 2010.
A. P(t) = 0.0076t2 - 0.38t + 40.9 B. P(t) = 0.0076t2 - 0.054t + 40.9 C. P(t) = 0.0063t2 + 0.0013t + 40.52 D. P(t) = 0.0076t2 - 0.38t + 9.26
Simplify.
A. 
B. 
C. 
D. 
Find the derivative of the following function.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. none of these