Factor by grouping, if possible.5x3 + 4x2 - 20x - 16
A. (5x2 + 4)(x - 4)
B. (5x - 4)(x2 + 4)
C. (5x + 4)(x2 - 4)
D. (5x2 - 4)(x + 4)
Answer: C
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Find the torsion of the space curve.r(t) = (2t - 8)i + (t2 - 8)j + 5k
A. ? = -1 B. Undefined C. ? = 1 D. ? = 0
Provide an appropriate response.Perform the indicated operations: 8 ÷ 
+ 3 × 
+ 4 - 11
A. -15 B. -47 C. -37 D. -26
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = 10 + 12x4 - 5x + 13x3 + 11x2
A. Degree: 4; leading coefficient: 12 B. Degree: 4; leading coefficient: 10 C. Not a polynomial function. D. Degree: 10; leading coefficient: 12
Solve.A company that manufactures outdoor rocking chairs makes a daily profit p according to the equation 
where p is measured in dollars and x is the number of rocking chairs made per day. Find the number of rocking chairs that must be made each day to produce a zero profit for the company. Round your answer to the nearest whole number.
A. 2043 rocking chairs or 2657 rocking chairs per day B. 25 rocking chairs per day C. 44 rocking chairs or 50 rocking chairs per day D. 19 rocking chairs or 25 rocking chairs per day