There are approximately 330000000 cubic miles of water on Earth. A cubic mile is approximately 147200000000 cubic feet, How much water is on Earth? Estimate using scientific notation. (The answer choices are 5 x 10 to the 17th power ft3, 5 x 10 to the 18th power ft3, 5 x 10 to the 19th power ft3, and 5 x 10 to the 88th power ft3

i not know

step-by-step explanation:

man its nopq i just guessed and got it right so uhh

g00d lucc

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: