Find the product and simplify.
? 
A. 
B. 
C. 
D. 15
Answer: D
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i + 3ln(t - 7)j - 
k
A. v(0) = 
j
B. v(0) = -4i - 
j
C. v(0) = 4i - 
j
D. v(0) = -
j
Mathematics
If angle B = 32ø, find angles A and C.
What will be an ideal response?
Mathematics
Write the expression as a complex number in the form a + bi.
A. 14 + 0i B. 0 - 14i C. 0 + 14i D. -14 + 0i
Mathematics
Write an equation to describe the variation. Use k for the constant of proportionality.x varies jointly as y and the square of z.
A. x + y + z2 = k B. xyz2 = k C. x = kyz2 D. x = k + y + z2
Mathematics