Use an identity to write the expression as a single trigonometric function or as a single number.
A. sin 7°
B. cot 7°
C. cos 7°
D. tan 7°
Answer: A
Mathematics
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Find the function represented by the power series. 
A. - 
B. - 
C. 
D. 
Mathematics
Solve the problem.If g(x) = x2 - 2x - 3 , solve g(x) ? 0.
A. [-1, 3] B. (-?, -1] C. (-?, -1] or [3, ?) D. [3, ?)
Mathematics
Find the mean. If necessary, round to one decimal place.5, 6, 10, 5, 14, 9
A. 8.7 B. 9.8 C. 6.7 D. 8.2
Mathematics
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The enrollment at a local college increased by 5% over last year's enrollment of 4,200. Find the current enrollment.
A. 6,300 students B. 210 students C. 4,410 students D. 4,205 students
Mathematics