Find the derivative of the function.s = 
A. 
= 8t8 + 7t2 + 8t
B. 
= t3 - 
- 
C. 
= 4t3 - 
- 
D. 
= 4t3 + 
+ 
Answer: C
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Multiply and write answer in lowest terms.1
× 13
A. 21
B. 25
C. 24
D. 13
Answer the question.To complete the square from an equation in the form x2 - ax = b, is it ever appropriate to subtract a positive number from each side?
What will be an ideal response?
Solve the problem.Trains S and T are both traveling in the same direction. Their distances in miles North of Boston after x hours are computed by the functions fS and fT, respectively, and their graphs are shown in the figure for 
(i) Which train is traveling slower? (ii) How many hours elapse before the two trains are the same distance from Boston and how far are they from Boston when this occurs? 
A. train S; 264 hours, 3.3 miles B. train T; 3.3 hours, 264 miles C. train T; 264 hours, 3.3 miles D. train S; 3.3 hours, 264 miles
Solve the problem.Let f(x) be the function represented by the dashed line and g(x) be the function represented by the solid line. Solve the equation f(x) = g(x).
A. x = -3 B. x = -2 C. x = 3 D. x = 2