What is the grade of a slope with a rise of 400 feet and a run of 2400 feet? to the nearest tenth the grade will be

The grade of a slope is

Step-by-step explanation:

we know thatThe formula to calculate the slope  is equal to

where

 -----> is the rise

 -----> is the run

substitute

Convert to percentage

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:

idk

step-by-step explanation:

i don't know