Find the mode (if any) of the list of data.11, 11, 18, 18, 11, 13, 18, 11
A. 11
B. 12
C. 13
D. 14
E. 10
Answer: A
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Evaluate the expression.
A. 336 B. 6720 C. 20,160 D. 56
Provide an appropriate response.If 9 is substituted for x in the rational expression 
, the result is 
. An often-heard statement is "Any number divided by itself is 1." Does this mean that this expression is equal to 1 for x = 9? Explain why or why not.
What will be an ideal response?
Solve the problem.A circular hole is filled with concrete to make a footing for a load-bearing pier. The hole measures 18 inches across and requires 1.5 bags of concrete in order to fill it to ground level. What is the depth of the hole? Round your answer to the nearest inch. (One bag of concrete, when mixed with the appropriate amount of water, makes 1800 in.3 of material.)
A. 8 in. B. 11 in. C. 17 in. D. 15 in.
Sketch the graph and show all local extrema and inflection points.f(x) = 
A. Local minimum: (1, -3)
Local maximum: (-1, 3)
Inflection point: (0, 0)
B. Maximum: (0, 6)
No inflection point
C. Local minimum: (-1, - 
)
Local maximum: (1, 
)
Inflection point: (0, 0)
D. Local minimum: (-1, -3)
Local maximum: (1, 3)
Inflection points: (0, 0), (-1
, - 
),
(1
, 
)