In the problem, sin ? and cos ? are given. Find the exact value of the indicated trigonometric function.sin ? = 
, cos ? = 
Find sec ?.
A. 
B. 
C. 
D. 
Answer: A
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Verify the identity.tan 2x = 
What will be an ideal response?
Solve the problem.A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $29.04. The second group bought 5 slices of pizza and 4 soft drinks for $20.40. How much does one slice of pizza cost?
A. $2.88 per slice of pizza B. $2.00 per slice of pizza C. $1.50 per slice of pizza D. $2.38 per slice of pizza
Round the number to the place indicated.Round to the nearest tenth: 14.956
A. 14.96 B. 14.9 C. 15.0 D. 15.1
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100