Find the slope of the line containing the two points.(8, -7) and (4, -7)
A. -4
B. 
C. 0
D. undefined
Answer: C
Mathematics
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Find the average value of the function f over the given region.f(x, y) = 5x + 2y over the rectangle 0 ? x ? 6, 0 ? y ? 9.
A. 
B. 16
C. 15
D. 24
Mathematics
Solve. Write a mixed numeral for the answer.Mr. Meredith is building a table. The top will have a piece of marble 
inches by 18 inches, bordered by 2
inches of wood on all four sides. Give the overall dimensions of the table top.
A. 28 in. by 23
in.
B. 28 in. by 23 in.
C. 28
in. by 23
in.
D. 24
in. by 20
in.
Mathematics
Multiply.(9 - 6i)(5 - 9i)
A. 54i2 - 111i + 45 B. -9 + 111i C. -9 - 111i D. 99 + 51i
Mathematics
Find the second-order partial derivative.Find fyy when f(x,y) = 8x3y - 7y2 + 2x.
A. 24x2 B. -14 C. 48xy D. -28
Mathematics