The starting temperature was -5 degrees at 5am, and after two hours, the temperature was 34 degrees at 7am. The temperature increased by 39 degrees, how did we get this answer?
You add -5 and 39
-5 + 39 = 34
A tip for adding negatives:
When you get a problem similar to -5 + 39, you can actually flip them around if you need an easier understanding. So it would be 39 - 5. Both equations still equal 34 as long as you keep the values of each number!
r = d/2 r = 15.6/2 r = 7.8 in. thus the radius of the right circular cone is 7.8 v = 1/3(3.14)(7.8)^2(12.4) v= 1/3(3.14)(60.84)(12.4) v= 2368.866/3 v = 789.622 thus the volume of the right come is 789.622 cubic inches