Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, tan ? < 0Find sin(2?).
A. 
B. 
C. - 
D. 
Answer: D
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If f satisfies the equation of change 
, and the initial value of f is 7.76, find a formula for the function 
.
?
A. 
B. 
C. 
D. 
Find the inverse of the matrix (if it exists).A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 
Write an algebraic equation and use it to solve the problem.The Four Flying Feldmans acrobat troupe is planning a nationwide tour. They will give 8 performances per week in various cities across the U.S. The venues in which they will perform hold about 6000 people each, and concert tickets will sell for $15 each. The advance expenses for each performance are $23,000, and the additional travel, lodging, meal, and miscellaneous costs are $35,000 per week. How many weeks will the Four Flying Feldmans need to be on tour if each of them wants to earn $4,008,000 from the tour?
A. 8 weeks B. 6 weeks C. 32 weeks D. 12 weeks
Solve the problem.An auto repair shop charged a customer $416 to repair a car. The bill listed $96 for parts and the remainder for labor. If the cost of labor is $40 per hour, how many hours of labor did it take to repair the car?
A. 7 hr B. 8 hr C. 9 hr D. 8.5 hr