Solve the following logarithmic equations.
log(x) + log(x − 1) = log(3x + 12)

The answer to your question is: x = 6

Step-by-step explanation:

Data

                         log(x) + log(x − 1) = log(3x + 12)

                        log x(x - 1) - log(3x + 12) = 0

                        log x(x - 1) / (3x + 12) = 0

Antilog            x(x - 1) /(3x + 12) = 1

                       x² - x = 3x + 12

                       x² - x - 3x - 12 = 0

                      x² - 4x - 12 = 0

                    (x - 6) (x + 2) = 0

                    x1 = 6     x2 = -2      

x2 is negative, but there are no negative logs, so -2 is not an answer to this equation.                        

the square root of what number? if you add that, then someone will probably answer the question.

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168