Express in terms of i.
A. 40i
B. ± 40
C. -40i
D. i
Answer: A
Mathematics
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Use the elimination method to solve the system of linear equations. x - 7y = -429x - 6y = -36
A. (0, 6) B. No solution C. (-6, 0) D. (1, 5)
Mathematics
Solve the problem.Obtain the Taylor series for 
from the binomial series for 
.
A. 1 - 2x + 3x2 - 4x3 B. 1 + 2x + 3x2 + 4x3 C. 1 + 3x2 + 5x4 + 7x6 D. 2x + 3x2 + 4x3 + 5x4
Mathematics
Find parametric equations for the rectangular equation.y = x4 - 4
A. x = t, y = t4 - 4; 0 ? t < ? B. x = t2, y = t4 - 4; 0 ? t < ? C. x = t, y = t2 - 4; 0 ? t < ? D. x = t2, y = t2 - 4; 0 ? t < ?
Mathematics
Rationalize the denominator. If any variables are present, assume that they represent nonnegative numbers, and assume that the denominator is not zero.
A. 
B. 5
C. 
D. 14
Mathematics