Math homework, please help

Posted on 2014-04-01 06:05:00 in Math by JUDY

1) use the change of base rule to find the logarithm to four decimal places. Log2 of 6





2) Solve the problem. Round answer to nearest tenth, when appropriate. Use the formula pH= -log[H3O+], as needed.



Find the pH if [H3O+]=5.8 x 10^-10





3) Determine which of the rational functions given below has the following feature(s).



x-intercepts: -3 and -4, y-intercepts: 12/25, vertical asymptote: x=5, horizontal asymptote: y=1

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