Use the figure to find the exact value of the trigonometric function.
?
?
sin 2?
?
A. ?
B. ?
C. ?
?
D. ?
E. 
Answer: E
Mathematics
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Solve by the method of your choice.(x + 8)(x - 3) = 2
A. {-5 ± 
}
B. {5 ± 
}
C. 
D. 
Mathematics
Find n for the given value of an in the arithmetic sequence.an = -553
; 807
, 787
, 767
, . . .
A. n = 69 B. n = 68 C. n = 65 D. n = 66
Mathematics
Solve the problem.A surveyor standing 54 meters from the base of a building measures the angle to the top of the building and finds it to be 39°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 49°. How tall is the radio tower?
A. 9.52 m B. 18.39 m C. 6.77 m D. 6.54 m
Mathematics
Solve the problem.Ellen sells $820 worth of clothes and earns $73.80 in commission. What is the commission rate?
A. 9% B. 10% C. .9% D. 11%
Mathematics