What is 2500 written in scientific notation

In this problem, you want the decimal point between the 2 and the 5. This moves it 3 places to the left .

 2.5×10^3

hope that helped

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!