Use the given information to find the exact value of the trigonometric expression.cos ? = - 
; 
< ? < ?
Find tan(2?).
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Perform the indicated operation or operations.
+ 
A. 
B. 
C. 
D. 1
Mathematics
Solve the problem.Sue can sew a precut dress in 3 hours. Helen can sew the same dress in 2 hours. If they work together, how long will it take them to complete sewing that dress? Give your answer rounded to one decimal place, if necessary.
A. 1.8 hr B. 5 hr C. 1.2 hr D. 2.5 hr
Mathematics
Simplify the expression. Write the answer with only positive exponents. Assume that all variables represent positive real numbers.
A. 78/5m2
B. -76/5m2
C. 148/25m3
D. 
Mathematics
Use the commutative and/or associative laws to rewrite the given expression. Label each step with a reason.x(y2) as 2(xy)
What will be an ideal response?
Mathematics