Find all the numbers for which the rational expression is defined.
A. b ? 5
B. b ? -5
C. All real numbers.
D. b ? 0
Answer: B
Mathematics
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Find the surface area of the surface S.S is the area cut from the plane z = 6y by the cylinder x2 + y2 = 49.
A. 49
?
B. 7
?
C. 49
D. 14
?
Mathematics
Classify as true or false.If GCD(a, b) = 1, then a and b can both be even.
A. False B. True
Mathematics
Find the product using FOIL.(3
- 2
)(4
+ 8
)
A. -24 + 16
B. -24 + 24
C. -24 - 13
D. 12
+ 16
- 16
Mathematics
Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = 2x2 + 8x + 6
A. Increasing on (-2, ?); decreasing on (-?, -2) B. Increasing on (2, ?); decreasing on (-?, 2) C. Increasing on (-4, ?); decreasing on (-?, -4) D. Increasing on (8, ?); decreasing on (-?, 8)
Mathematics