Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Answer: B
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two cars leave town at the same time going in the same direction. One travels at 
and the other travels as 60 mph. In how many hours will they 
apart?
A. 20 hr B. 1 hr C. 4 hr D. 40 hr
The table shows the number of votes received by each candidate in an election along with the amount spent by the candidate on advertising. Use the table to answer the question.. CandidateNumber of VotesAmount Spent on Advertising ($) Jose Gonzales 57,209 59,104 Angela Wong 67,108 59,024 Sue Miller 67,091 102,376 Tyler Johnson 41,036 66,514 Sandra Ouye 41,009 72,607How much was spent on advertising by Tyler Johnson?
A. $66,154 B. $41,036 C. $66,514 D. $72,607
Solve the problem.Among a group of 63 investors, 25 owned shares of Stock A, 29 owned shares of Stock B, 29 owned shares of Stock C, 15 owned shares of both Stock A and Stock B, 12 owned shares of Stock A and Stock C, 15 owned shares of Stock B and Stock C, and 10 owned shares of all three. How many investors did not have shares in any of the three? How many owned shares of either Stock A or Stock C but not Stock B?
A. 22; 20 B. 12; 30 C. 12; 22 D. 12; 20
Without using a calculator, give the exact trigonometric function value with rational denominator.sec 
A. 
B. 
C. 1
D. 