Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = -
, cos ? > 0Find cos 
.
A. 
B. - 
C. - 
D. 
Answer: B
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = cos x + 1, [0, 2?], midpoint
A. 
B. 
C. 
D. 
Provide an appropriate response.Is the best buy (lowest cost per unit) always the best value? Give an example when this is not true and explain why.
What will be an ideal response?
Determine whether or not the function is one-to-one.f(x) = 8x3 - 1
A. Yes B. No
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimateexact 
A. Estimate: $38; exact: $33.54 B. Estimate: $36; exact: $33.64 C. Estimate: $38; exact: $33.64 D. Estimate: $38; exact: $33.66