Rationalize the denominator and simplify.
A. 1
B. 
C. 
D. 
Answer: B
Mathematics
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Find the length s. Round the answer to three decimal places.
A. 2.687 ft B. 1.954 ft C. 2.443 ft D. 2.199 ft
Mathematics
Perform the indicated operations.(9x4 - 4x2 + x) - (3x3 + 6x2 + 5x) + (3x2 - x)
A. 9x4 + 3x3 - 13x2 - 5x B. 4x5 + 7x4 - 5x C. 9x4 - 3x3 - 5x2 + 5x D. 9x4 - 3x3 - 7x2 - 5x
Mathematics
Determine if the function is a solution to the given differential equation.y = 5x ln x + 7x - 6; y'' - 
= 0.
A. Yes B. No
Mathematics
Factor by any method.y2 - 81
A. (y2 + 9)(y2 - 9) B. (y + 9)(y - 9) C. (y - 9)(y - 9) D. (y + 81)(y - 81)
Mathematics