Earth's radius is approximately 6400 km. what is the surface area & volume of the earth?

Step-by-step explanation:

step 1

Find the surface area

we know that

the surface area of a sphere is equal to

substitute

substitute the approximate value of pi (3.14)

step 2

Find the volume

The volume is equal to

substitute

Volume V

Surface area

Step-by-step explanation:

Suppose that the shape of the earth is completely spherical.

Then the surface area and the volume of a sphere are given by the following formulas

Surface area

Volume V

In this case we know the radius r of the sphere.

then we use the radius value to find the volume and surface area

Volume V

Surface area

m

step-by-step explanation:

shell's the art director at her local community center. she paid $10 and for each child that attends she earns $4.

for each child she ears $4 that is the slope m = 4

she paid $10, that is the initial amount paid. so 10 is the y intercept b

m =4   and b = 10

y intercept is 10 so the point is (0,10)

we start graph from y intercept (0,10)

slope = 4 . we know slope = rise / run

slope = 4   or 4/1   are same

rise = 4   and run = 1

for rise we move 4 units up and for run we move 1 unit to the right

the graph is attached below

x axis is the number of child she attends

y axis is the amount   she earns