The vectors u, v, and w are drawn below. Sketch the given vector. 
u + w
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Find a formula for the distance from the point P(x, y, z) to the z-axis.
A. 
B. 
C. 
D. 
Use a formula to solve the problem.The area of a trapezoid is 72 square feet. If the bases are 5 and 13 feet, find the altitude of the trapezoid.
A. 4 ft B. 8 ft C. 16 ft D. 1.5 ft
Solve the system of equations using substitution.
A. x = 9, y = 5; x = -9, y = -5; x = 9, y = -5; x = -9, y = 5 or (9, 5), (-9, -5), (9, -5), (-9, 5) B. x = 9, y = -9; x = -9, y = -5; x = 5, y = 9; x = -5, y = -9 or (9, -9), (-9, -5), (5, 9), (-5, -9) C. x = 9, y = 5; x = 5, y = 9; x = 9, y = -5; x = 5, y = -9 or (9, 5), (5, 9), (9, -5), (5, -9) D. x = -9, y = -5; x = -5, y = -9; x = -9, y = 5; x = -5, y = 9 or (-9, -5), (-5, -9), (-9, 5), (-5, 9)
Find the domain of the composite function f ? g.f(x) = 7x + 42; g(x) = x + 1
A. {x 
B. {x 
C. {x 
D. {x 