Solve the problem.If v = -i - j, find 
.
A. 2
B. 0
C. 
D. 1
Answer: C
Mathematics
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Solve the given differential equation. y(4) - 10y''' + 30y'' - 50y' + 125y = 0
A. y = (C1 + C2x)e5x + (C3 + C4x)e
x
B. y = C1 e5x + C2 cos 
x + C3 sin 
x
C. y = (C1 + C2x)e5x + C3 cos 
x + C4 sin 
x
D. y = (C1 + C2x)e5x + C3e
x + C4 e-
x
Mathematics
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = ?/6 to x = ?/2. The cross sections perpendicular to the x-axis are circular disks with diameters running from the curve 
to the curve 
A. (2
- 2) ? - 
B. (
- 1) ? + 
C. 
- 
D. 
- 
Mathematics
Find the difference.
- 
A. - 3
B. 
C. 3
D. - 
Mathematics
Translate the sentence to an algebraic inequality.A number is less than or equal to 9.
A. x > 9 B. x < 9 C. x ? 9 D. x ? 9
Mathematics