Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: B
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Refer to the double-bar graph below which shows the number of male and female athletes at a university over a four-year period. Solve the problem.
Which year had the smallest number of male athletes? What was the total number of male athletes that year?
A. year 2; 300 athletes B. year 1; 200 athletes C. year 4; 475 athletes D. year 1; 150 athletes
Match the given function to its graph.1) y = sin 3x2) y = 3 cos x3) y = 3 sin x4) y = cos 3xA B
C D
A. 1B, 2D, 3C, 4A B. 1A, 2C, 3D, 4B C. 1A, 2D, 3C, 4B D. 1A, 2B, 3C, 4D
Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
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