Solve the problem.A pharmaceutical company introduces a new headache medication on the market. They advertise the product on television and find that the percentage P of people who buy the product after t weeks satisfies the function 
Find the formula for the rate of change P'(t).
A. P'(t) = 
B. P'(t) = 
C. P'(t) = 
D. P'(t) = 
Answer: D
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Evaluate the line integral along the curve C.
ds, C is the curve r(t) = (8 - t)i - j + (8 - t) k, 0 ? t ? 1
A. 
B. 
C. 
D. 
Answer the question.How can the graph of f(x) = 0.8|x - 10| + 7.3 be obtained from the graph of y = |x|?
A. Shift it horizontally 10 units to the left. Stretch it vertically by a factor of 8. Shift it vertically 7.3 units upward.
B. Shift it horizontally 8 units to the left. Shrink it vertically by a factor of 0
Shift it vertically 7.3 units upward.
C. Shift it horizontally 7.3 units to the right. Stretch it vertically by a factor of 8. Shift it vertically 10 units downward.
D. Shift it horizontally 10 units to the right. Shrink it vertically by a factor of 0.8. Shift it vertically 7.3 units upward.
Graph the function.y = 3 csc (2x)
A. 
B. 
C. 
D. 
Solve the polynomial inequality.x4 - 6x3 - 79x2 + 264x + 1260 ? 0
A. (-7, -3) ? [6, 10] B. [-7, -3] ? [6, 10] C. [-7, -3] ? (6, 10) D. [-7, 10]