Solve the problem.A cylindrical container with a volume of 3? ft3 is to be made from two different materials. The material used for the ends costs three times as much as the material for the side. What are the dimensions of the container that minimize the cost of the materials?
A. r = 
ft; h = 
ft
B. r = 
ft; h = 4
ft
C. r = 
ft; h = 4
ft
D. r = 
ft; h = 3
ft
Answer: C
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Provide an appropriate response.If we use u = x2 + 2 as a substitution to find 
then which of the following would be a correct result?
A. 
B. 
C. 
D. None of the above
Solve the polynomial inequality.(x + 4)(x + 1)(x - 10) > 0
A. (-?, -4) ? (-1, 10) B. (10, ?) C. (-?, -1) D. (-4, -1) ? (10, ?)
Factor the polynomial completely.2am + 12mb + 3an + 18nb
A. (a + 3n)(2m + 6b) B. (2m + n)(a + 18b) C. (2m + 3n)(a + 6b) D. (2m + 6b)(a + 3n)
Solve the problem.In September 1998 the population of the country of West Goma in millions was modeled by 
At the same time the population of East Goma in millions was modeled by 
In both formulas x is the year, where 
corresponds to September 1998. Assuming these trends continue, estimate the year when the population of West Goma will equal the population of East Goma.
A. 2016 B. 2019 C. 21 D. 1977