Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.f(x) = 7 sin2 x cos2 x
A. 
- 
cos 2x
B. 
sin 2x
C. 
- 
cos 4x
D. 
- 
cos 4x
Answer: C
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Solve the problem.Suppose the consumption of electricity grows at 2.6% per year, compounded continuously. Find the number of years before the use of electricity has tripled. Round the answer to the nearest hundredth.
A. 4.23 yr B. 42.25 yr C. 115.38 yr D. 0.42 yr
The following question refers to a country with six states. There are 300 seats in the legislature, and the populations of the states are given in the table below.
Determine the number of "extra" seats under Hamilton's method.
A. 3 B. 2 C. 4 D. 5 E. 1
Find the probability of the event.Give the probability that the roll of a die will show a number less than 4.
A. 
B. 
C. 
D. 
Find the missing value. Round time to the nearest period, interest rate to the nearest whole percent per year, and money to the nearest cent.Principal: $6709Compound amount: $12,951Interest rate: 
Compounded: quarterlyTime: 9.25 years
A. 9% B. 6% C. 7% D. 8%