Perform the indicated operation.(7x4 - 5x2 + x) - (9x3 + 5x2 + 6x) + (5x2 - x)
A. 7x4 + 9x3 - 15x2 - 6x
B. -4x5 + 7x4 - 6x
C. 7x4 - 9x3 - 3x2 + 6x
D. 7x4 - 9x3 - 5x2 - 6x
Answer: D
Mathematics
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Solve the problem.Find the point on the line of intersection of the planes 
and 
that is closest to the origin.
A. 
B. 
C. 
D. 
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = tan 3x
A. Q(x) = 1 + 
x2
B. Q(x) = 3x
C. Q(x) = 1 + 3x2
D. Q(x) = 1 - 
x2
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Write the decimal as a percent.0.27
A. 0.027% B. 2.7% C. 270% D. 27%
Mathematics