Factor completely.5x3 + 5x2y - 30xy2
A. (5x2 + 10xy)(x - 3y)
B. 5x(x - 2y)(x + 3y)
C. 5x(x + 2y)(x - 3y)
D. (x - 2y)(5x2 + 15xy)
Answer: B
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Find the flux of the vector field F across the surface S in the indicated direction.F = 2xi + 2yj + zk; S is portion of the plane x + y + z = 7 for which 0 ? x ? 4 and 
direction is outward (away from origin)
A. 120 B. 352 C. 176 D. 48
Solve the problem.Find the area of the triangle determined by the points P(1, 1, 1), Q(4, -10, -8), and 
A. 5
B. 
C. 
D. 5
Solve the problem.The length of the base of an isosceles triangle is 42.59 meters. Each base angle is 34.17°. Find the length of each of the two equal sides of the triangle. Round your answer to the hundredths place.
A. 51.48 m B. 37.92 m C. 31.37 m D. 25.74 m
Find the slope of the line going through the given pair of points.(-7, -4) and (-7, 3)
A. - 
B. 7
C. - 7
D. Undefined