<span>√2×√13
</span>√2×13
√26
..................................
We can divide the big rectangle into a 5x4 grid. I recommend you to do that physically with a pen or pencil. There are 20 grids in total. Now count the shaded grids. You should get 13.
13/20
multiply both the numerator and denominator by 5 to get it to 100.
This is also equal to 65% and .65
The "domain" would be the the x values.
Answer: -4, -2, 0, 2, 4
It would be simplified to 1/21