Multiply.1 ? 72
A. 1
B. 72
C. 172
D. 0
Answer: B
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (4t2 + 16)i + 
j
A. v = (8t)i + 
j
B. v = (8t)i - 
j
C. v = 
i + (8t)j
D. v = (8)i + 
j
Mathematics
Solve the problem.Estimate the minimum number of subintervals needed to approximate the integral
with an error of magnitude less than 10-4 using the Trapezoidal Rule.
A. 82 B. 116 C. 231 D. 400
Mathematics
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.20x2 + 23x + 6
A. prime B. (4x + 3)(5x + 2) C. (20x + 3)(x + 2) D. (4x - 3)(5x - 2)
Mathematics
Expand the expression.log4 (9x)
A. log4 9 - log4 x B. log2 9 - log2 x C. log2 9 + log2 x D. log4 9 + log4 x
Mathematics