Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.2x3 + 2x2 - 40x
A. 2x(x - 4)(x + 5)
B. 2x(x + 4)(x - 5)
C. (x - 4)(2x2 + 10)
D. (2x2 + 8x)(x - 5)
Answer: A
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Solve.Find the area of a circular flower bed whose diameter is 4016 feet. (Use ? = 3.14 as an approximate value.)
A. 50,642,723.8 ft2 B. 12,660,681 ft2 C. 12,610.24 ft2 D. 6305.12 ft2
For the functions f(x) and g(x), determine the domain of (f - g)(x) (the difference of f and g).f(x) = 3x + 
, g(x) = 1 - x2
A. {x ? x is a real number and x ? 1} B. {x ? x is a real number} C. {x ? x is a real number and x ? -6} D. {x ? x is a real number and x ? 6}
Find the finance charge and total installment cost of the loan. Round to the nearest cent.Amount financed: $420.00Down payment: $105.00Cash price: $525.00Number of payments: 12Amount of payment: $47.78
A. $105.00; $524.80 B. $153.36; $678.36 C. $420.00; $678.36 D. $210.00; $420.00
Solve the problem.The variable z varies jointly as the 2.4 power of x and the 1.7 power of y. When 
and 
Approximate the constant of variation to three significant digits.
A. 5.16 B. 8.56 C. 6.66 D. 8.06