Question

Solve


`0.1 = √(r)`
Solve for r.

Write your answer as a decimal

r=______​

Answer 1

`r = 0.01`

Explanation:

In order to find r we have to square both sides of the equation

`0.1 = √(r) \\ {0.1}^(2) = { √(r) }^(2)`

The *square root* sign cancels out the *squared* sign therefore:

`{0.1}^(2) = r \\ 0.01 = r`