Use sum-to-product identities to rewrite the expression as a product.sin 
- sin 
A. 2 sin 
cos 
B. -2 cos 
sin 
C. 2 cos 
cos 
D. -2 sin 
sin 
Answer: B
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Evaluate the expression.
?
?
A. 10.9 B. 11.7 C. 8.2 D. 7.1 E. 3.8
Find the probability.If a person is randomly selected, find the probability that his or her birthday is in May. Ignore leap years. Assume that all days of the year are equally likely for a given birth.
A. 
B. 
C. 
D. 
Find the missing quantities by first computing the markup on one base and then computing the markup on the other. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.
A. Cost = $63.75 Selling price = $142.94 % Markup on selling price = 55.4% B. Cost = $63.75 Selling price = $142.94 % Markup on selling price = 44.6% C. Cost = $98.37 Selling price = $177.56 % Markup on selling price = 44.6% D. Cost = $98.37 Selling price = $177.56 % Markup on selling price = 55.4%
Use the compound-interest formula to find the account balance with the given conditions: P = principal, r = interest rate, t = time, in years.P = $14,000, t = 3, r = 7% compounded semiannually
A. $3209.57 B. $17,209.57 C. $16,627.61 D. $17,150.60