Use reduction formulas to evaluate the integral.
A. 4 sin 2x - 
sin3 2x + C
B. 2 sin 2x - 
sin3 2x + C
C. 2 sin 2x - 
cos3 2x + C
D. 2 sin 2x + 
sin3 2x + C
Answer: B
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Change to an equivalent expression involving an exponent.logb r = s
A. rb = s B. br = s C. bs = r D. rs = b
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Solve the problem. A foreign exchange student decided to purchase an international calling plan. The monthly cost of the plan is $19.99 plus $0.08 per minute. This can be modeled by the equation 
where C is the monthly cost and m is the number of minutes used each month. Graph this equation, assuming the student will not use more than 400 minutes in a month.Monthly Cost of Cell Phone Use
A.
| Monthly Cost of Cell Phone Use |
B.
| Monthly Cost of Cell Phone Use |
C.
| Monthly Cost of Cell Phone Use |
D.
| Monthly Cost of Cell Phone Use |
