Y=X/9
If you plug in the point:
4=36/9
4=4
So it checks out :)
Hope this helps!
A
rational number is any number that can be written as the
ratio between two other numbers i.e. in the form

Part A:
An easy choice that makes sense is 7.8, right in the middle. To prove that it's rational we need to write it as a ratio. In this case we have

Part B:
We need a number that can't be written as a ratio (because it neither terminates nor repeats). Some common ones are

,

,

and

so it makes sense to try and use those to build our number. In this case

works nicely.
Let the unknown side be "z" inches
Through pythagoras:

Because the square of the two sides add up to the square of the hypotenuse in a right triangle.
This means that



So the missing side is 16 inches
Hope this helped
Um 4.2 maybe since -4.2 and 4.2 or on the opposite scale
Answer:
c2=a2+b2 1. 172=square +b2 289=225+b2 2.
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