Solve the problem.The voltage E in an electrical circuit is given by E = 4.3 cos 110?t, where t is time measured in seconds. Find the frequency of the function (that is, find the number of cycles or periods completed in one second).
A. 
B. 110
C. 55
D. 
Answer: C
Mathematics
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Solve the problem.Miguel invests his money in a savings account which gives an effective annual yield of 2.14%. The nominal rate is 2.12%. How often does compounding occur - daily, monthly, quarterly, or semiannually?
A. monthly B. quarterly C. semiannually D. daily
Mathematics
Find the domain of the rational function.h(t) = 
A. {
t ? -5, 15}
B. {
t ? -5}
C. {
t is any real number}
D. {
t ? -5, 5}
Mathematics
Solve the equation on the interval [0, 2?).2 sin2 x = sin x
A. 
, 
B. 
, 
, 
, 
C. 
, 
D. 0, ?, 
, 
Mathematics
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = (x + 2)5 + 4 
A. 
B. 
C. 
D. 
Mathematics