The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 2 for r(t) = (9t - 3t4)i + (3 - t)j + (7t2 - 10t)k
A. a(2) = -144i - j + 14k
B. a(2) = -144i + 14k
C. a(2) = -36i + 14k
D. a(2) = 144i + 14k
Answer: B
Mathematics
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Write the matrix in reduced row-echelon form.
What will be an ideal response?
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Solve the system of equations by graphing.
A. (3, 1) B. (-1, -3) C. (1, 3) D. no solution
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Evaluate the improper integral. If the integral does not converge, state that the integral is divergent.
A. 2 B. 0 C. -2 D. Divergent
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