Answer the question.Find cos ? given that cos 2? = 
and 0 ? ? < 
.
A. 
B. 
C. 3
D. 
Answer: A
Mathematics
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Solve the problem.If a single card is drawn from a standard 52-card deck, in how many ways could it be a diamond or a face card?
A. 21 ways B. 13 ways C. 25 ways D. 22 ways
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. x2 + 1
B. 1
C. 
D. 
Mathematics
Provide an appropriate response.Find the direction of the vector in standard position with end point (6, 8). Round to the nearest hundredth.
A. 48.59° B. 36.87° C. 41.41° D. 53.13°
Mathematics
Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.0.1 + (3.78 + 0.22) ÷ 0.004 ? 0.7
A. 1428.67143 B. 700.1 C. 717.5 D. 42.38
Mathematics