Use an identity to write the expression as a single trigonometric function or as a single number. cos2
- sin2
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Factor the trinomial completely.x2 + 3x - 54
A. Prime B. (x - 9)(x + 6) C. (x - 9)(x + 1) D. (x + 9)(x - 6)
Mathematics
(15/12xy2)/(60a2/24x3y) =
a. 4a2x3y3/8 b. 4a-2y/8 c. a-2x2y-1/2 d. a2x-3y/2 e. a2x3y/2
Mathematics
Translate to an equation and solve. What percent of 50 is 13?
A. 13% B. 40% C. 80% D. 26%
Mathematics
Divide to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.2
÷ 1
A. 1
B. 1
C. 2
D. 1
Mathematics