Perform the indicated operation and write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: A
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Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.cos ? = - 
, ? in quadrant II Find sin 2?.
A. - 
B. - 
C. 
D. 
Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = -3x2 + 12x + 36
A. Increasing on (-?, 2); decreasing on (2, -?) B. Increasing on (-?, 0); decreasing on (0, -?) C. Increasing on (-2, ?); decreasing on (-?, -2) D. Increasing on (-?, -2); decreasing on (-2, -?)
A cable railway had a 12-foot-diameter pulley to drive the cable (see the figure). In order to keep the cable cars moving at a linear velocity of 9 miles per hour, how fast would the pulley need to turn (in revolutions per minute)? (1 mi = 5,280 ft)
?
?
A. 23.2 rpm B. 24.5 rpm C. 15.3 rpm D. 28.1 rpm E. 21.0 rpm
State using percents.In a survey of 100 people, 22 preferred butterscotch syrup on their ice cream. What percent did NOT prefer butterscotch syrup?
A. 78%
B. 
%
C. 
%
D. 22%