Solve.(x - 2)(x + 7) < 0
A. (-7, -?)
B. (-2, 7)
C. (-?, 2)
D. (-7, 2)
Answer: D
Mathematics
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Find fx, fy, and fz.f(x, y, z) = x2y + y2z + xz2
A. fx = 2xy; fy = x2 + 2yz; fz = y2 + 2xz B. fx = 2y + z2; fy = x2 + 2z; fz = y2 + 2x C. fx = 2xy + z2; fy = x2 + yz; fz = y2 + xz D. fx = 2xy + z2; fy = x2 + 2yz; fz = y2 + 2xz
Mathematics
Solve the equation for the indicated variable.5 - (n + 
x) = 5n for n
A. 
B. 
C. -40 n + 50
D. 
Mathematics
Two dice are thrown. Determine the number of ways the indicated score can be obtained.Less than 4
A. 4 B. 6 C. 2 D. 3
Mathematics
Find the date that is the indicated number of days from the given date.116 days from September 20
A. January 31 B. February 1 C. January 14 D. January 12
Mathematics