Use the associative property of multiplication to write an equivalent algebraic expression.5(3x)
A. (5 + 3)x
B. (5 ? 3) + x
C. 5(3 + x)
D. (5 ? 3)x
Answer: D
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Use the appropriate addition formula to find the exact value of the expression.cos 
A. 
- 
B. - 
- 
C. 
D. 
Solve the problem.The Cool Company determines that the supply function for its basic air conditioning unit is 
and that its demand function is 
, where p is the price. Determine the price for which the supply equals the demand.
A. $22.86 B. $22.36 C. $21.86 D. $21.36
Solve the problem.The average score on a test is 40. Write an absolute value inequality that describes a test score, x, that is not within 4 points of the average. Solve the inequality.
A. 
> 4. x < 
or x > 44
B. 
? 40. 
? x ? 44
C. 
? 4. 36 ? x ? 44
D. 
> 40. x < 
or x > 44
Find the volume generated by revolving about the x-axis the region bounded by the following graph.
A. 8?
B. 2?
C. 
?
D. 4?