Express the product as a sum containing only sines or cosines.2 cos(7?) cos ?
A. cos(10?) + sin(4?)
B. cos(8?) + sin(6?)
C. cos(14?) + cos(2?)
D. cos(8?) + cos(6?)
Answer: D
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Find the probability.Two dice are rolled. Find the probability that the score on the dice is no more than 3.
A. 
B. 
C. 
D. 
Find the graph that matches the given system of equations.3x - y = 12
A. 
B. 
C. 
D. 
Solve the problem.A truck rental company rents a moving truck one day by charging $25 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 180 miles?
A. C = 0.09x + 25; $26.62 B. C = 0.09x - 25; $8.80 C. C = 0.09x + 25; $41.20 D. C = 25x + 0.09; $4500.09
Convert the point from polar coordinates to rectangular coordinates. Round answer to three decimal places, if necessary.
a. ( 1, -1,732 )
b. ( -1, 1,732, 1 )
c. ( 1, 1,732,-1 )
d. ( -1, -1,732 )
e. ( 2, -2,618 )