The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i + 2ln(t - 9)j - 
k
A. v(0) = -4i - 
j
B. v(0) = 4i - 
j
C. v(0) = -
j
D. v(0) = 
j
Answer: C
Mathematics
You might also like to view...
Provide an appropriate response.(a) Show that 
dx = 
e-4 < 0.0092 and hence that 
dx < 0.0092.(b) Explain why this means that 
dx can be replaced by 
dx without introducing an error of magnitude greater than 0.0092.
What will be an ideal response?
Mathematics
Rewrite as a radical expression and simplify if possible. Assume all variables represent nonnegative real numbers.(196t6)1/2
A. 14t3
B. 14t6
C. 
D. 14
Mathematics
Find the reciprocal of the number.
A. 7
B. 
C. 
D. 
Mathematics
Find the distance between a and b.
a = 173, b = 57
Mathematics