An irrational number/value is one you cannot express in terms of a ration, or a fraction, it cannot be written as fraction
now 291.87... is simple, two decimals, so you use two zeros at the botom and end up with

and boom, there you are, a fraction, nice and dandy
now, let's see the first one -√(127) well, low and behold, 127 is a prime number, and and thus is has no two factors that'd serve as root, so, there's no rational root that'd give that, that makes it irrational
I think answer should be 450 please give me brainlest let me know if it’s correct or not okay thanks bye
Answer:
.I didn't understand it either sorry
See the attached drawing for a visual.
Since we know that AC = CB is half the length of AB, we can write that in equation form. The goal is to determine the length of 




Now that we know the value of
, we can find the value of
:



73<span>÷12-17
Difference means subtraction. </span>