Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = 8x + 4y + 7; R = {(x, y): 0 ? x ? 1, 1 ? y ? 3}
A. 28
B. 38
C. 26
D. 36
Answer: B
Mathematics
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Multiply and simplify.
A. 32
B. 32y4
C. 8y3
D. 32y3
Mathematics
Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 29,400,000,000,000 B. 600,000 C. 29,400,000 D. 600,000,000,000
Mathematics
Solve.(x - 1)2 = -49
A. 1 ± 7i B. 1 ± 7 C. 7i D. 7i + 1
Mathematics
Find two possible missing terms so that the expression is a perfect square trinomial.x2 + 
+ 81
A. -9x, 9x
B. -18x, 18x
C. -162x, 162x
D. - 
x, 
x
Mathematics