Complete the factoring.30x9 = 6x( )
A. 5x
B. 180x10
C. 5x8
D. 180x8
Answer: C
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = 11xi + 11yj + 11zk , S is the surface of the sphere x2 + y2 + z2 = 1 in the first octant, direction away from the origin
A. 
?
B. 0
C. 
?
D. 
?
Find the domain and graph the function.G(t) = 
A. D: (-?, -1) ? (-1, ?)
B. D: (-?, -1) ? (-1, ?)
C. D: (-?, ?)
D. D: (-?, 0) ? (0, ?)
Solve the problem.How many liters (L) of a 20% alcohol solution must be mixed with 40 L of a 50% solution to get a 40% solution?
A. 60 L B. 20 L C. 2 L D. 6 L
Write a fractional rate. Simplify the rate to a unit rate and write it as a phrase.The city where Lu Na lives has a population of 2,485,355 people and an area of 166.7 square miles. What is the unit rate in people per square mile (the population density)?
A. 
; 15,655 people per square mile
B. 
; 0.0000671 people per square mile
C. 
; 414,308,679 people per square mile
D. 
; 14,909 people per square mile