Question

Write a formula for the function and use the formula to find the indicated value of the function.
a. The surface S of a cube as a function of the length of the cube's edge e; the surface area of edge length 5ft.
b. the volume V of a sphere as a function of the sphere's radius r; the volume of the sphere of radius 3cm.

Please help :)

Answer 1

A cube has 6 sides, all the same
Each side has area = e^2
The total =

Vol of sphere = __ pi r^3

Answer 2

what about for
c. the area A of a circle as a function of its diameter d; the area of a circle diameter 4 in.
d. the height h of an equilateral triangle as a function of its side length s; the height of an equilateral triangle of side length 3m.

sorry for any typos, thank you so muchh.

Answer 3

So, can you fill in the blanks in my answers?

Answer 4

yess
google is a fabulous thing when i somewhat know what im looking for

Answer 5

I agree!

Answer 6

c is obvious
d
ratio of the height of an equil. triangle to side is sqrt(3):2

Answer 7

you are my favorite person on the planet right now. doing last minute summer homework packets and im stuck on so much stuff cuz im hurrying doing it.
yeah i had c written down on a seperate sheet, dont know why i asked it lol

Answer 8

happy to help

Answer 9

are you good at chemistry by any chance..? lol

Answer 10

not terrible