Convert the given product to a single radical. Assume that all variables represent positive numbers.
? 
A. 
B. 
C. ab
D. ab
Answer: A
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Identify the domain of f. Write your answer in set-builder notation.f(x) = 
A. {x|x ? -6, x ? 0, x ? 6} B. {x|x ? -6, x ? 6} C. {x|x ? 0, x ? 36} D. {x|x ? 0, x ? 6}
Find the x- and y- intercepts. If there are no intercepts write "No x-intercept" or "No y-intercept".x = 4
A. No x-intercept, No y-intercept B. (-4, 0), No y-intercept C. No x-intercept, (0, 4) D. (4, 0), No y-intercept
Solve the following problem involving the graph of a quadratic equation.On a particular day, the amount of pollution A in the air outside a home located near a factory can be modeled by the expression 
, where t is the number of hours after 12 P.M. Graph the equation that models the amount of pollution. At what time of day was the pollution highest?What was the highest amount of pollution in the air during the day?
What will be an ideal response?
Determine whether the function is continuous at the given point c. If the function is not continuous, determine whether the discontinuity is removable or nonremovable. f(x) = 
; c = 0
A. Discontinuous; removable, define f(0) = 1
B. Continuous
C. Discontinuous; nonremovable
D. Discontinuous; removable, define f(0) = 