My question is in the picture pls help
2 answers:
You might be interested in
Answer:
<h2>C) 6π cm²</h2>Step-by-step explanation:
The shaded portion is a sector and the area of a sector is expressed as;
Area of sector =
given = 60°, radius r = 6cm
area of the sector =
area of the sector = 36π/6
area of the sector = 6πcm²
Answer:
Step-by-step explanation:
See attached for a sketch of some of the cross sections.
Each cross section has area equal to the square of the side length, which in turn is the vertical distance between the curve y = √(x + 1) and the x-axis (i.e. the distance between them that is parallel to the y-axis). This distance will be √(x + 1).
If the thickness of each cross section is ∆x, then the volume of each cross section is
∆V = (√(x + 1))² ∆x = (x + 1) ∆x
As we let ∆x approach 0 and take infinitely many such cross sections, the total volume of the solid is given by the definite integral,
