Integrate the function.
A. 
tan3 x + C
B. - 
tan3 x + C
C. 8(sec x + tan x)5+ C
D. 8 tan x + 
tan3 x + C
Answer: D
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Factor by grouping.15x2 - 6x + 20x - 8
A. (15x - 4)(x + 2) B. (3x - 4)(5x + 2) C. (15x + 4)(x - 2) D. (3x + 4)(5x - 2)
Use a graphing calculator to display the solution of the given inequality or system of inequalities.y > -1 - xy < 5x - x3
A. 
B. 
C. 
D. 
Solve the problem.The average per-person annual consumption of hot dogs is shown in the table. Let C be the average per-person consumption of hot dogs at t years since 2002. C = 0.97t + 18.41 can be used to model the data.
What is the t-intercept and what does it mean in this situation?
A. (0, 18.41); In 2002 the average consumption was 18.41 hot dogs per-person. B. (-18.98,0); In 2002 the average consumption was 18.98 hot dogs per-person. C. (-18.98,0); In 1983 the average consumption was 0 hot dogs per-person. D. (0.05, 0); Each year the average consumption is increased by 0.05 hot dogs per person.
Convert as indicated.21 L to pints
A. 19.1 pints B. 39.7 pints C. 44.7 pints D. 50.4 pints