Without graphing the function, determine its amplitude or period as requested.y = 
cos (- 
x)Find the period.
A. 
B. 
C. 
D. 
Answer: D
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Decide whether or not the events are mutually exclusive.Events A and B defined as followsEvent A is that at least three of Toni's five cousins are female. Event B is that at least three of Toni's five cousins are male.
A. No B. Yes
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.32x2 - 16x + 2
A. -4(4x - 1)2 B. 2(4x + 1)2 C. 2(4x + 1)(4x - 1) D. 2(4x - 1)2
Solve. Remember to insert units when writing your answer.A company wishes to ship 3 boxes of their product, each box weighing 4 lb 
What is the total weight of 
A. 13 lb 2 oz B. 7 lb 2 oz C. 12 lb 6 oz D. 12 lb 2 oz
Solve the problem.A manufacturer of CD players has found that her company's revenue R, in dollars, can be approximated by the quadratic equation 
where p represents the unit price, in dollars. Determine the maximum revenue that can be earned by the manufacturer. Round your answer to the nearest dollar.
A. $475,240 B. $118,810 C. $237,620 D. $59,405