Solve the equation by completing the square.a2 + 2a - 48 = 0
A. 6, -8
B. -40, -8
C. -6, 8
D. 4
, - 4
Answer: A
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Find the volume of the solid. Use 
for ?. 
A. 14 cu cm B. 36 cu cm C. 4 cu cm D. 108 cu cm
Provide an appropriate response.On the given graph of y = cot x sketch the graph of y = cot-1 x as defined in the text. Give the domain and the range.
What will be an ideal response?
Solve the problem.In 1990, the population of a country was estimated at 4 million. For any subsequent year the population, P(t) (in millions), can be modeled by the equation 
where t is the number of years since 1990. Estimate the year when the population will be 21 million.
A. approximately the year 2088 B. approximately the year 2093 C. approximately the year 2041 D. approximately the year 2016
Factor.10x2y5 - 5x2y3 - 25x6y3
A. 5x2y3(2y2 - 1 - 5x4) B. x2y3(10y2 - 5 - 25x4) C. 5x2y3(2y2 - 5x4) D. 5x2y3(5y2 - xy - 20x4)