The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. s (m)
When is the body moving forward?
A. 0 < t < 1, 3 < t < 4, 5 < t < 7
B. 0 < t < 3, 3 < t < 5, 5 < t < 8
C. 0 < t < 8
D. 0 < t < 1, 3 < t < 4, 5 < t < 7, 9 < t < 10
Answer: D
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Find an equation for the sphere with the given center and radius.Center (0, -9, -2), radius = 3
A. x2 + y2 + 3z2 + 18y + 4z = -76 B. x2 + y2 + z2 + 18y + 4z = -76 C. x2 + y2 + 3z2 + 18y - 4z = -76 D. x2 + y2 + z2 + 18y - 4z = -76
Using Green's Theorem, find the outward flux of F across the closed curve C.F = ln (x2 + y2) i + tan-1 
j; C is the region defined by the polar coordinate inequalities 
and 
A. 0 B. 101 C. 198 D. 99
Write the Hindu-Arabic numeral as a Babylonian numeral.32,564
A. 
B. 
C. 
D. 
Write an equivalent expression by factoring out the greatest common factor.9wx - 9wy - 12wz
A. 3(3wx - 3wy - 4wz) B. 9w(x - 9y - 12z) C. 3w(3x - 3y - 4z) D. 3w(3x - 9wy - 12wz)