Write the sum without sigma notation and evaluate it.
A. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 6 + 
B. 2 sin ? + 2 sin 
= 
C. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 2 + 
+ 
D. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 1 + 
Answer: C
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?John made $33,000 a year last year. This year he made $38,980. What percent of increase to the nearest 1/10 of a percent did he make? ?
A. 18.1% B. 19% C. 20.8% D. 17.9% E. 17.55%
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Solve the problem.A toy rocket is shot vertically upward from the ground. Its distance in feet from the ground in t seconds is given by 
. At what time(s) will the ball be 
from the ground? Round your answer to the nearest tenth of a second.
A. 1.0 sec and 9.9 sec B. 10.9 sec C. 169.8 sec and 180.2 sec D. 5.5 sec
Divide.
÷ 
A. - 
B. 
C. 
D. - 