In ancient Mesopotamia a cloth merchant has a cloth of length 121 meters and another of length 77 meters which he wishes to cut into strips of equal length. How many meters long should he cut the strips so that he gets strips of equal length that are as long as possible?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle