In a given triangle, side "a" is 7 inches long and side "b" is 24 inches long. The length of side "c" is

25

Step-by-step explanation:

the formula for the hypotenuse of a triangle is

a^2+b^2=c^2

plug in what we know

7^2+24^2=c^2

49+576=c^2

625=c^2

c=25

hope this helps

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: