Decide if the given number is a solution to the given equation.
= 
; 42
A. No
B. Yes
Answer: B
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Sketch the graph and show all relative extrema and inflection points.y = 12x - x3
A. 
Inflection point: (0, 12)
B. 
Relative maximum: (2, 16)
Relative minimum: (-2, -16)
Inflection point: (0, 0)
C. 
Relative maximum: (-2, 16)
Relative minimum: (2, -16)
Inflection point: (0, 0)
D. 
Relative maximum: (0, 12)
Solve the problem.A 100 gal tank is half full of distilled water. At time = 0, a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 
When the tank is full, how many pounds of concentrate will it contain?
A. 175 pounds B. 150 pounds C. 200 pounds D. 187.5 pounds
Solve.Find the perimeter of the trapezoid. Simplify.
A. 1620 in.
B. 22
in.
C. (14
+ 3
) in.
D. 23
in.
Perform the indicated operations.(-18) ÷ (-3) ? 
A. 3
B. - 
C. -12
D. - 3