Give the amplitude or period as requested.Period of f(x) = 2 cos(7?x + 2)
A. 
B. 7?
C. 2
D. 
Answer: A
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Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Provide the appropriate response.Determine the number of real and imaginary solutions of the equation x9 = 1.
A. 9 real; 0 imaginary B. 1 real; 0 imaginary C. 0 real; 9 imaginary D. 1 real; 8 imaginary
Solve the problem.What is the domain of the sine function?
A. all real numbers, except odd multiples of 
(90°)
B. all real numbers from -1 to 1, inclusive
C. all real numbers
D. all real numbers, except integral multiples of ? (180°)
Solve the problem.A ladder leans against a building that has a wall slanting away from the ladder at an angle of 96° with the ground. If the bottom of the ladder is 23 feet from the base of the wall and it reaches a point 52 feet up the wall, how tall is the ladder to the nearest foot?
A. 60 ft B. 61 ft C. 59 ft D. 58 ft