Answer:
x=40
Step-by-step explanation:
Divide both sides of the equation by 4
0.2x-5=3
Move the constant to the right-hand side and change its sign
0.2x=3+5
Add the numbers
0.2x=8
Divide both sides of the equation by 0.2
x=40
Answer:
The cone'll require about 37.5 cm of tubing
Step-by-step explanation:
To do this, we need to know that the volume of the medium will have to be the same volume of the cone that will be printed.
Then, the volume of the cone is:
V = π*r^2*h/3
V = 3.14 * 5^2*8 / 3 = 209.33 cm^3
We can assume that the tubing is a cylinder so:
V = π*r^2*h
The radius is 1 1/3, and this is:
1*3 + 1 = 4/3
Solving for h we have:
h= V/π*r^2
h = 209.33 / 3.14*(4/3)^2
h = 209.33 / 5.58
h = 37.5 cm
Answer:
2, 7, and 4
Step-by-step explanation:
I don't really have e a explanation
2x^2+3
x=3
2(3)^2+3
2(9)+3
18+3
21 is the answer.