Please help I will give brainliest what is the median
1 answer:
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Answer:
The side length of the cube is 9.
Step-by-step explanation:
To find the volume of a cube you use the equation V=E³, although edge can mean length.
Since we already know the volume though, we have to do this equation backwards, and find the cubed root of 729.
To do this we do which will give us our answer of 9 cubic inches.
Hope this helped!
Answer:
V = 63π / 200 m^3
Step-by-step explanation:
Given:
- The function y = f(x) is revolved around the x-axis over the interval [1,6] to form a spherical surface:
y = √(42*x - x^2)
- The surface is coated with paint with uniform layer thickness t = 1.5 mm
Find:
The volume of paint needed
Solution:
- Let f be a non-negative function with a continuous first derivative on the interval [1,6]. The Area of surface generated when y = f(x) is revolved around x-axis over the interval [1,6] is:
- The derivative of the function f'(x) is as follows:
- The square of derivative of f(x) is:
- Now use the surface area formula:
- The Volume of the pain coating is:
V = S*t
V = 210*π*3/2000
V = 63π / 200 m^3