Solve the problem.Suppose that 
= -11. Find 
and 
.
A. 1; -11
B. -1; 11
C. 0; -11
D. 1; 11
Answer: A
Mathematics
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Find the center of mass of the wire that lies along the curve r and has density ?.r(t) = (-3 - 3t)i + j + 5tk, 0 ? t ? 1; ?(x, y, z) = x + z2
A. 
B. 
C. 
D. 
Mathematics
Find the particular solution to the given differential equation that satisfies the given conditions.3y" + 19y' + 20y = 0; Dy = 0 and y = 2 when x = 0
A. y = - 
e5x + 
e4x/3
B. y = 
e-5x - 
e-4x/3
C. y = - 
e-5x + 
e-4x/3
D. y = 
e-5x - 
e-4x/3
Mathematics
Factor the expression completely, if possible.z3 + 343
A. (z + 7)(z2 - 7z + 49) B. (z + 7)(z2 + 49) C. (z - 7)(z2 + 7z + 49) D. (z - 343)(z2 - 1)
Mathematics
Identify the greatest common factor.3x2 + 15x
A. 3x2 B. 15x C. 3 D. 3x
Mathematics