Rewrite the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the trigonometric expression without the use of a calculator.2 sin 112.5° cos 112.5°
A. - 
B. 
C. 
D. - 
Answer: D
Mathematics
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Write an algebraic equation and use it to solve the problem.Jason borrowed $9000 at a simple interest rate of 6.5% for three-quarters of a year. What was the interest?
A. $9438.75 B. $438.75 C. $43.88 D. $9043.88
Mathematics
Solve the problem.Richard's team wants to plant 435 trees in 3 months. How many trees per month do they need to plant?
A. 290 trees B. 155 trees C. 148 trees D. 145 trees
Mathematics
For 7 years, Thompson Cleaners deposits $800 at the end of each quarter into an account paying 8% compounded quarterly. What is the value of the account at the end of 7 years? ?
A. $29,654.32 B. $29,627.62 C. $28,552.97 D. $29,632.97 E. $29,640.97
Mathematics
Solve.c = 
, for t
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics