What is the surface area of the right cone below?

The answer is:

The correct option is D.

To find the surface area of the right cone, we need to use the following formula:

From the picture we have that:

So, substituting and calculating we have:

Hence, the correct option is D.

Have a nice day!

b is the final answer! : )

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option