Solve the problem.If f(?) = sin ? and f(a) = 
, find the exact value of f(a) + f(a + 2?) + f(a + 4?).
A. 1
B. 1 + 6?
C. 
D. 3
Answer: A
Mathematics
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Find an approximation of the area of the region R under the graph of the function f on the interval [a, b]. Use n subintervals and choose the representative points as indicated. Please round your answer to two decimal places.
?
; 
; 
; midpoints
?
__________sq units
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.What will it cost to buy ceiling molding to go around a rectangular room with length 18 ft and width 12 ft? The molding costs $1.86 per linear foot.
A. $66.96 B. $44.64 C. $55.80 D. $111.60
Mathematics
Find the coordinates of the centroid for the region bounded by the curves 
and y = 245
What will be an ideal response?
Mathematics
Graph.f(x) = 
A. 
B. 
C. 
D. 
Mathematics