Use the graph to complete the identity.cos 3x cos 
x + sin 3x sin 
x = ? 
A. y = cos 
x
B. y = sin y = cos 
x
C. y = sin y = cos 
x
D. y = cos y = cos 
x
Answer: A
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Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 3(1 - ex), x > 0; relative to f(x) = ex
A. Stretched vert; reflected across x-axis;
moved up 3 unit(s)
B. Stretched horiz; reflected across y-axis;
moved down 1 unit(s)
C. Stretched horiz; reflected across x-axis;
moved down 3 unit(s)
D. Stretched vert; reflected across y-axis;
moved up 1 unit(s)
Solve the proportion equation.
= 
A. 28.05 B. 18.7 C. 10.15 D. 37.3
Perform the indicated operation. Simplify the result if possible.15 ft 6 in. ÷ 3
A. 6 ft 2 in. B. 5 ft 3 in. C. 2 ft 5 in. D. 5 ft 2 in.
Provide an appropriate response.Simple interest applies when a loan is repaid:
A. for a credit card debt B. as an installment C. after more than one interest period D. in a lump sum