Find the exact value of the expression if ? = 60°. Do not use a calculator.f(?) = sin ?Find 8 f(?).
A. - 
B. 4
C. 4
D. - 
Answer: C
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Use a proportion to solve the problem.If a spring stretches 8 meters when a 3-kilogram weight is attached to it, how much will it stretch when a 18-kilogram weight is attached to it?
A. 47 meters B. 48 meters C. 50 meters D. 51 meters
Solve the problem.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 15 miles, the distance between the cars was 5 miles more than the distance traveled by the car heading east. How far had the eastbound car traveled?
A. 20 mi B. 25 mi C. 30 mi D. 15 mi
Locate any intercepts of the function.
A. (0, 0), (0, 1) B. (0, 0) C. (0, 0), (1, 0) D. none
Factor the trinomial, or state that the trinomial is prime.x2 + 2xy - 24y2
A. (x + 4y)(x + y) B. (x + 4y)(x + 6y) C. (x - 4y)(x + 6y) D. prime