C= [tex]\sqrt{98}[/tex]
What happens when you square a square root?
We could say that the square root or the square cancel each other out. They are a inverse of each other. If we have the number written with the index two ( squared) then taking the square root simply means that we leave out the two ( this only applies on the positive numbers ).
How to figure out square roots?
- Start by i = 1, if i * i = n, then i it is the square root of n as n is the perfect square.
- if i * i > n, it means square root must lie between (i-1, i), let’s call them (low, high)
- Apply binary search in the range (low, or high). Find mid of (low, high):
Using the distance formula
with (x₁, y₁ ) = (- 4, 2) and (x₂, y₂ ) = (3, - 5)
[tex]d= \sqrt{(3+4)^{2} +(-5-2)^{2}} \\\\= \sqrt{7^{2} + (-7)^{2}} \\\\= \sqrt{49+49} \\\\=\sqrt{98}[/tex]
Learn more about square root here https://brainly.com/question/3120622
#SPJ2
