Solve the problem.Candy and Delvis are riding bicycles in the same direction. Candy is traveling at the speed of 4 miles per hour, and Delvis is traveling at the speed of 11 miles per hour. In 4 hours what is the distance between them?
A. 25 mi
B. 37 mi
C. 29 mi
D. 28 mi
Answer: D
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Find the flux of the vector field F across the surface S in the indicated direction.F = 3xi + 3yj + zk; S is portion of the plane x + y + z = 1 for which 0 ? x ? 4 and 
direction is outward (away from origin)
A. 24 B. 22 C. - 16 D. 48
Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = 3x2 - 4x
A. f(x) = 3
2 - 
; 
B. f(x) = 3
2 - 
; 
C. f(x) = 3
2 - 
; 
D. f(x) = 3
2 - 
; 
Determine the real solutions to the system of nonlinear equations.y = x2 + 2y = -x2 + 6
A. (4, 
), (4, -
)
B. (
, 4), (
, -4), (-
, 4), (-
, -4)
C. (
, 4), (
, -4)
D. (
, 4), (-
, 4)
The expression for the speed of blood through an artery of radius 
at a distance d from the artery wall is given by 
. Factor and simplify this expression.
A. 
B. 
C. 
D. 
E. 