S casts a "shadow" on the x-y plane given by the set

Each cross section is a square whose side length is determined by the vertical distance between y = 1 and y = x², which is |1 - x²|. But since -1 ≤ x ≤ 1, this distance simplifies to 1 - x².
The volume of an infinitesimally thin section is then (1 - x²)² ∆x (where ∆x represents its thickness), and so the volume of S is

The integrand is even, so this integral is equal to twice the integral over [0, 1] :

To find the value of x, use Pythagorean theorem which is a to the power of two plus b to the power of two equals the hypotenuse which Is c to the power of two, which you'd value as x. Square root the entire thing and you'll be left with c.
Hello there!
Pearl drives 18 Miles with every 1 gallons of gas, Lourdes Drives 24 miles every 1 gallons of gas. Lourdes is using less gas and driving more miles than Pearl every gallon so he is using gas more efficiently.
Hope this helped!!
By long division.Feel free to ask me if you don't know: )