HOW TO GET ANSWERS ON KAHN ACADEMY *NOT CLICKBAIT* so first thing you want to do is turn off your wifi on your computer then click hint and then find the answer and remember it. then you want to hit ctrl + shift + i at once then you have to the two arrows pointing to the right like this: >> and click on applications once you are there click on local storage then click on the things under local storage and delete them then you go back to kahn and you will have the anwser :))

What is the value of the expression below? (81^2)^1/8

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?