Solve the problem.A wire of length 8x is bent into the shape of a square. Express the area A of the square as a function of x.
A. A(x) = 2x2
B. A(x) = 8x2
C. A(x) = 4x2
D. A(x) = 
x2
Answer: C
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An object moves in simple harmonic motion described by the given equation, where t is measured in seconds and d in meters . Find the maximum displacement, the frequency, and the time required for one cycle.d = 4 + 3 cos 5?t meters
A. displacement = 7 meters; period = 
seconds; f = 
oscillations/second
B. displacement = 3 meters; period = 
seconds; f = 
oscillations/second
C. displacement = 7 meters; period = 
? seconds; f = 
oscillations/second
D. displacement = 3 meters; period = 
seconds; f = 
oscillations/second
Write the augmented matrix for the system.-2x + 4z = 34 2y + 6z = 62 7x + 5y + 8z = 99
A. 
B. 
C. 
D. 
Multiply. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 1
Solve.A pendulum bob swings through an arc 60 inches long on its first swing. Each swing thereafter, it swings only 90% as far as on the previous swing. How far will it swing altogether before coming to a complete stop?
A. 67 inches B. 600 inches C. 133 inches D. 300 inches