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 = 2 cos 5?t meters
A. displacement = -2 meters; period = 
seconds; f = 
oscillations/second
B. displacement = 2 meters; period = 
? seconds; f = 
oscillations/second
C. displacement = 2 meters; period = 
seconds; f = 
oscillations/second
D. displacement = 2 meters; period = 
seconds; f = 
oscillations/second
Answer: D
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Simplify.
A. 
B. 
C. 
D. 
Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?
Multiply.-7(-2)(6)
A. -84 B. -3 C. 20 D. 84
Identify the equation as either an identity or not.cos 2? = sin 2? tan ?
A. Not an identity B. Identity