Factor out the GCF.2x5 + 2x
A. 2x(x4)
B. 2x(x4 + 1)
C. 2(x5 + x)
D. 2(x6 + 1)
Answer: B
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Find the angle between u and v in radians.u = 8i - 3j - 8k, v = 5i + 8j - 7k
A. 1.31 B. 1.02 C. 1.57 D. 0.55
Solve the problem.A cylindrical paint can is 3 inches across the top and about 10 inches high. How many cubic inches of paint could it hold (to the nearest hundredth)?
A. 188.40 in.3 B. 70.65 in.3 C. 141.30 in.3 D. 282.60 in.3
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 10x + 4y
A. Domain: all points in the xy-plane; range: real numbers z ? 0 ; level curves: lines 
c ? 0
B. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c > 0
D. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
Solve the problem.If m?y = 111° in the following figure, find the measures of ?w, ?x, and ?z. 
A. m?w = 69°, m?x = m?z = 111° B. m?w = 111°, m?x = m?z = 69° C. m?w = -21°, m?x = m?z = 69° D. m?w = 111°, m?x = m?z = -21°