Use the basic identities to simplify the expression.(1 - cot ?)(1 + cot ?) + csc2 ?
A. 2
B. 2 csc2 ?
C. 0
D. 1
Answer: A
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Use a power regression model for the following data to answer the following question. If x is multiplied by 3, what is the effect on y? Round your answer to two decimal places. x 2.96 4.2 5.71 8.06 8.35 y 6.25 5.04 4.38 1.06 3.97?
A. y is multiplied by 0.30. B. y is multiplied by 0.31. C. y is multiplied by 0.37. D. y is multiplied by 0.45.
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 + 2, [0, 2?], left-hand endpoint
A. 
B. 
C. 
D. 
Subtract.45,121 - 7869
A. 36,952 B. 45,072 C. 41,252 D. 37,252
Find the x- and y- intercepts.
x + y = 15
A. (18, 0), (1, 15) B. (15, 0), (0, 18) C. (18, 0), (0, 15) D. (0, 0), (0, 15)