Simplify the expression representing the derivative of a function.f'(x) = (4x4 - 3x3 + 6x - 5)(6x) + (x - 3)(6x2 - 6)
A. 24x5 - 18x4 - 6x3 + 18x2 - 36x - 18
B. 24x5 - 18x4 + 6x3 + 18x2 - 36x + 18
C. 24x5 - 18x4 + 6x3 - 36x2 - 36x + 18
D. 24x5 - 18x4 - 18x2 - 30x + 18
Answer: B
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In the following figure, ?GBC = 36°. Find the measures of the following angles.
(a) GFB
(b) BCE
(c) CED
Identify the coefficient of the given term.y
A. 0 B. -1 C. 1 D. y
Solve the problem.If f(?) = cot ? and f(a) = -4, find the exact value of f(a) + f(a + ?) + f(a + 3?).
A. -4 B. -12 + 4? C. -12 D. undefined
Interpret the linear equation.The monthly cost of a certain long distance service is given by the linear function 
where y is in dollars and x is the amount of time in minutes called in a month. Find and interpret the slope and y-intercept of the linear equation.
A. m = 0.08; The number of minutes called in a month increases 0.08 for every dollar spent. b = 7.95; The number of minutes that can be called when x = 0 is 7.95. B. m = 7.95; The number of minutes called in a month increases 7.95 for every dollar spent. b = 0.08; The number of minutes that can be called when x = 0 is 0.08. C. m = 7.95; The cost of the long distance service increases $7.95 for every 1 minute called. b = 0.08; The cost of the long distance service is $0.08 if no calls are made for the month. D. m = 0.08; The cost of the long distance service increases $0.08 for every 1 minute called. b = 7.95; The cost of the long distance service is $7.95 if no calls are made for the month.