Rationalize the denominator. Assume that all variables represent positive real numbers.

A.
B.
C.
D.


Answer: B

Mathematics

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Solve the problem.Find the value of b for which 1 - eb + e2b - e3b + . . . = 6.

A. ln 7
B. ln 6
C. ln 
D. ln 

Mathematics

Find the additive inverse of the number.

A.
B. 8
C. - 8
D. - 

Mathematics

Factor completely, or state that the polynomial is prime.28y4 + 147y3 - 126y2

A. prime B. 7y2(4y + 3)(y - 6) C. 7y(4y2 + 3)(y - 6) D. 7y2(4y - 3)(y + 6)

Mathematics

Evaluate. 3

A. - 
B. - 
C.
D.  

Mathematics