Can you please help me solve 49, 59, and 60. Thanks so much! :)

all AT&T 2:12 PM 01 56% Chapter Review Exercises 59 28. Does the following table of revenue data for a computer manufac 45. What are the periods of these functions? turer suggest a linear relation between revenue and time? Explain. (a) y = sin 20 (b) y = sin 9 Year 2005 2009 2011 2014 (c) y = sin 20 + sin Revenue (billions of $) 13 18 15 11 46. Determine A. B. and C so that f(x) = A cos(Bx) + C cycles once from 8 to -2 and back to 8 as x goes from 0 to 2. 29. Suppose that a cell phone plan that is offered at a price of P 47. H(1) = A sin( Br) + C models the height (in meters) of the tide in dollars per month attracts C customers, where C(P) is a linear de- Happy Harbor at time : (hours since midnight) in a day. Determine A. mand function for $100 5 P $ $500. Assume C(100) = 1,090,000 B, and C if the high tide of 18 m occurs at 6:00 AM and the subsequent and C(500) = 100,000. low tide of 15 m occurs at 6:00 PM (a) Determine the demand function C(P). 48. Assume that sind = . where /2