I will give branliestr if that’s how you spell lol Example of problem:

For Cynthia’s third lab report, she calculated the mass of an object as it did down an incline plane. She got the following three masses

1.20kg. 0.91kg 1.08 kg

The true mass of the object is 1 kg

Cynthias percent error was
6.33%

( this an example problem to help with the picture up there)

A. is the answer in this question

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.