use multiplication, division, addition, and subtraction to isolate the variable, and solve for X.
Answer: Choice D
======================================================
Explanation:
The formula for the surface area of a cylinder is
We then replace r with 10 and h with 25. Keep in mind that the diameter is 20 mm, so the radius is half that at 10 mm.
So that's how we get to
Answer:
Step-by-step explanation:
h^2=x^2+y^2, here x and y are equal so we can say
h^2=2x^2, we see that h=2(2^(1/2)) so
2x^2=8
x^2=4
x=2
A line would be best used to model the surface of an aquarium, by putting a line on top of the surface and checking if the water is level or not.