Answer:
A
REASON:
It's not B or D because it's increasing and it's not C because if -3 - 15 is -18 then I am pretty sure it's not going to be 3 because it's multiplying
Answer:
First of AOD is verticallly opposite to BoC which makes it 55°
Angle at AoC is 55°+55°+105° minus 360 which is 145° hope this helps
h = 19 Meters
To make sure it's the correct answer, plug it in the volume formula for a cone.
The answer is -20x, because the parentheses show they are being multiplied, so you multiply -10x and 2, which would be -20x.