An acidophilus culture containing 150 bacteria doubles in population every hour. predict the number of bacteria in 12 hours

The number of bacteria that will exist in 12 hours is 614,400.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.