Use the fundamental identities to simplify the expression.
A. cos3?
B. sin ?
C. sec2?
D. tan2?
Answer: D
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Divide.
A. - 
+ 
i
B. 
- 
i
C. 
+ 
i
D. - 
+ 
i
Graph using the slope and y-intercept.y = 2x - 6
A. 
B. 
C. 
D. 
Find the equation of the tangent line to the curve when x has the given value.f(x) = -5
; x = 16
A. y = - 
x - 15
B. y = - 
x - 10
C. y = 
x - 10
D. y = - 
x + 10
Solve the problem.A company sells children's toy binoculars. The following equations model the cost per month (in dollars) to make x pairs of binoculars and the revenue per month (in dollars) earned by selling x pairs of binoculars. Explain the meaning of the point (750, 2250). Cost: y = x + 1500 Revenue: y = 3x[where x is the number of pairs of binoculars sold per month and y is the amount (cost or revenue) per month in dollars]
A. Revenue will equal cost ($750) when the company makes 2250 pairs of binoculars. B. Revenue will equal cost ($750) when the company makes and sells 2250 pairs of binoculars. C. Revenue will equal cost ($2250) when the company makes 750 pairs of binoculars. D. Revenue will equal cost ($2250) when the company makes and sells 750 pairs of binoculars.