Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.x2 + x - 56

A. (x - 7)(x + 8)
B. (x + 1)(x - 56)
C. (x - 8)(x + 7)
D. Prime

Answer: A

Mathematics

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Find the mass of the wire that lies along the curve r and has density ?.C1: r(t) = (3 cos t)i + (3 sin t)j, 0 ? t ? ;C2: r(t) = 3j + tk, 0 ? t ? 1; ? = 3t3

A.  units
B.  units
C. ?3 units
D. ?3 units

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Solve the right triangle.a = 15.3, c = 29.6

A. A = 31.1, B = 58.9, b = 33.3 B. A = 31.1, B = 31.1, b = 25.3 C. A = 31.1, B = 58.9, b = 25.3 D. A = 62.7, B = 27.3, b = 33.3

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Find the sum.

A. 173.155 B. 173.145 C. 173.045 D. 173.055

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Give an appropriate answer.Letf(x) = -7 andg(x) = 5. Find.

A. 8
B. - 
C. - 
D. - 

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