Answer:

Step-by-step explanation:
we know that
The volume of a right circular cone is equal to

where
r is the radius of the base of the cone
h is the height
Solve for r-----> That means, isolate the variable r
so
step 1
Multiply by 3 both sides

step 2
Divide by
both sides

step 3
take square root boot sides

For the first question: The equation would be set up as 30=1/2(12x) Then solve for x. (Or just plug that formula into Desmos)
Answer: x=5
8/5 = 20/x
8x = 20(5)
8x = 100
x = 12.5
answer
<span>length of its shorter side = 12.5 ft</span>
1 less than or greater than -2
Answer:
5, 25, 45
Step-by-step explanation:
okay so it goes like this, the number in the x colume X 4 + 5 so 0 X 4 = 0 + 5 = 5, 5 X 4 is 20 + 5 = 25 and 10 X 4 =40 + 5 = 45.