The following geometric sequence represent the population of two bacterial cultures at the 1-hour mark, the 2-hour mark the 3-hour mark, and so on. Culture A starts with more bacteria, but culture B has a ratio of increase that is larger. Which culture will have the greater population at the 18-hour mark? Culture A: 400,600,900,1350,... Culture B: 5,10,20,40

The sum of two numbers is 86, and their difference is 20. find the two numbers

What is the value of x? enter your answer in the box. x =

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet