Solve the equations by factoring.81k2 - 4 = 0

A. , -  
B. , -  
C. , 0
D. 2, 0


Answer: A

Mathematics

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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 3 for r(t) = (5t - 3t4)i  + (3 - t)j + (3t2 - 10t)k

A. a(3) = -324i + 6k B. a(3) = -324i - j + 6k C. a(3) = -81i + 6k D. a(3) = 324i + 6k

Mathematics

Predict the general, or nth term, an, of the sequence.0, 6, 12, 18, 24, . . .

A. 6n + 6 B. 8n - 6 C. 6n - 6 D. 6n - 7

Mathematics

Factor completely. State that the polynomial is prime if it cannot be factored.x3 + 7x2 + 12x

A. x(x - 4)(x + 3) B. x(x + 4)(x - 3) C. x(x + 4)(x + 3) D. x(x2 + 7x + 12)

Mathematics

Divide. Write the answer as a mixed number as needed.5 ÷ 1

A. 4
B. 4
C. 4
D. 5

Mathematics