★ Hello I need help please...

What is /

Make a explanation to this... Do not copy g. oogle, or other websites!

Make your own words...

And maybe you can show proof, how you got the answer?

Thanks~

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]

What is the value of x? enter your answer in the box.