Answer the question about the period of the function.Find the period of the function f(?) = cos 
?.
A. 2?
B. 2
C. 4?
D. 4
Answer: D
Mathematics
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Use the properties of logarithms to rewrite the expression. Simplify the result if possible. Assume all variables represent positive real numbers.log4 (7x + 11y)
A. log4 7x + log4 11y B. (log4 7x) (log4 11y) C. log4 77xy D. log4 (7x + 11y)
Mathematics
Solve the problem.An experienced accountant can prepare a tax return in 20 hours. A novice accountant can do the job in 24 hours. How long will it take them to do the job working together?
A. 
hr
B. 120 hr
C. 
hr
D. 10
hr
Mathematics
Multiply.-1.9(-12)
A. 22.8 B. 13.9 C. -13.9 D. -10.1
Mathematics
Use factoring to solve the quadratic equation.12x2 = 7x
A. 
B. 
C. 
D. 
Mathematics