Is -3 square root 8 rational or irrational

irrational

Step-by-step explanation:

if we make a square root of 8. We all know that the product of rational and irrational is always irrational. Hence the product will be irrational.

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

your answer would be 10x - 1