Evaluate the expression.r = 
, v = 
, w = 
(r + v ) ? w
A. 138
B. 
C. 
D. -138
Answer: A
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 3 for r(t) = (2t2 + 2t + 3)i - 4t3j + (6 - t2)k
A. v(3) = 14i - 108j - 6k B. v(3) = 10i - 108j - 6k C. v(3) = 14i + 108j + 6k D. v(3) = 8i - 36j - 3k
Mathematics
Find the acute angle between the lines.(1 + 
) x + (1 - 
) y = -18 and 
x + y = 15
A. 30° B. 75° C. 45° D. 60°
Mathematics
Use the remainder theorem and synthetic division to find f(k).k = 2; f(x) = x6 - 2x5 - 4x4 + 2x3 - 3x2 + 3x - 5
A. 59 B. 25 C. -58 D. -59
Mathematics
Use the table of integrals to find the integral.
?
?
Use C as the constant of integration.
What will be an ideal response?
Mathematics