Solve the problem.If x = 3 tan ?, express sin(2?) as a function of x.
What will be an ideal response?
sin (2?) = 2 sin ? cos ? = 2 ? 
? 
= 
Mathematics
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = (-1)n 
A. 1 B. 0 C. 4 D. Diverges
Mathematics
Solve the equation.
- 4 = 
A. {-9} B. {9} C. {9, -9} D. no solution
Mathematics
Solve the problem.The profit from the expenditure of x thousand dollars on advertising is given by 
Find the marginal profit when the expenditure is 
A. -69 thousand dollars /unit B. 210 thousand dollars/unit C. 1190 thousand dollars/unit D. 126 thousand dollars/unit
Mathematics
Find the mean for the list of numbers.Prices of shoes in Sonya's closet: $33.12, $66.26, $51.15, 
Round answer to the nearest cent.
A. $48.00 B. $51.15 C. $33.12 D. $40.00
Mathematics