A bacteria culture is started with 300 bacteria. After 4 hours, the population has grown to 500 bacteria. If the population grows exponentially. How long does it take for the culture to triple in size?

12 hours

Step-by-step explanation:

the culture was first 300

the it grew to 500 in 4 hours

so that means it grew by 200 in 4 hours

and the triple it size is 900

you say;

if 200 =4 hours what about 600

=12 hours

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°