Solve.A cube has a surface area of 6x2 + 108x + 486. Find the length of a side.
A. x - 9
B. x + 9
C. x + 54
D. 6(x + 9)
Answer: B
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane excluding x = 0; range: real numbers z ? 0; level curves: parabolas 
B. Domain: all points in the xy-plane excluding x = 0; range: all real numbers; level curves: parabolas 
C. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: parabolas 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: parabolas 
Solve the problem.Two rectangles are similar. The length of one rectangle is three times that of the other. How many times larger is the area of the larger rectangle?
A. 9 B. 6 C. 3 D. 12 E. none of these
Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find 
A. 
B. 
C. 
D. 
Graph the linear equation using the slope and y-intercept.y = 
x + 2
A. 
B. 
C. 
D. 