Write each whole number in expanded form.80,320
A. 8000 + 30 + 2
B. 80,000 + 300 + 20
C. 8000 + 300 + 2
D. 80,000 + 3000 + 20
Answer: B
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Find the potential function f for the field F.F = (y - z)i + (x + 2y - z)j - (x + y)k
A. f(x, y, z) = x + y2 - xz - yz + C B. f(x, y, z) = xy + y2 - xz - yz + C C. f(x, y, z) = xy + y2 - x - y + C D. f(x, y, z) = x(y + y2) - xz - yz + C
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = zi + xyj + zyk; D: the solid cube cut by the coordinate planes and the planes 
y = 1, and z = 1
A. 2
B. 1
C. 
D. 
Solve the equation.x2 = -4x
A. x = 0, x = 4 B. x = 4 C. x = 0, x = -4 D. x = -4
List the critical values of the related function. Then solve the inequality.
? 
A. -5, - 
; 
B. -5, 
; (-?, -5) ? 
C. 
? 
D. -5, 
, - 
, 
; (-?, -5) ? 
? 