Use your graphing calculator to graph the function between 
and 
. Show the graph of 
,
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. (Make sure your calculator is set to radian mode.)
?
?
A. ?
B. ??
C. ?
D. ?
Answer: C
Mathematics
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?
?
A. ?
B. ?
?
C. ?
D. ?
Answer: C
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 1; local maximum at x =-1; concave down on (0, ?); concave up on (-?, 0) B. Local minimum at x = 1; local maximum at x =-1; concave up on (0, ?); concave down on (-?, 0) C. Local maximum at x = 1; local minimum at x =-1; concave up on (-?, ?) D. Local maximum at x = 1; local minimum at x =-1; concave up on (0, ?); concave down on (-?, 0)
Find the surface area of the surface S.S is the portion of the surface 12x + 5z = 3 that lies above the rectangle 1 ? x ? 3 and 
in the 
A. 
B. 
C. 
D. 104
Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal places.
2
A. 4.3412 + 24.6202i B. 8.5505 - 23.4923i C. -23.4923 + 8.5505i D. -4.6985 + 1.7101i
Evaluate the expression for the given replacement values.2x + y
for x = 8 and y = -9
A. 25 B. -1 C. 7 D. 17