Question

A culture is tested for bacteria and has 1.3 million bacteria. The culture is then tested every 15 minutes and each time it is tested there are 3.5 times more bacteria. How many bacteria in millions will there be in the culture after 30 minutes? Round to the nearest hundredth.

Answer 1

hi so i have the answer for the 1st one but not the second one.

the first one

16, 11, 6, 1, -4 is arithmetic

5/9, 5/3, 5, 15, 45 is geometric

and 1/2, 1,2,3,4 is neither

Explanation: