The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. the population is model
ed by the function n = f(t) = a 1 + be−0.5t where t is measured in hours. at time t = 0 the population is 20 cells and is increasing at a rate of 8 cells/hour. find the values of a and b.
If you add 690 ml of water you will obtain 1.690 liter of 70% alcohol. Of course if you halve the amounts, e.g. 0.5 liter 75% alcohol and 345 ml of water, you will also obtain 45% alcohol solution.
So to get to 9:00, we need 3 minutes so now you have 27 minutes left of break. Then, you add 27 and you get 9:27. I hope this helped and please mark me brainliest!