Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
In this problem we have an isosceles right triangle (because has two equal sides)
so
Applying the Pythagorean theorem
substitute the given values
Francesca got home first because If you round 13/15 you get 1 whole.
"AB84"
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a and c both have √x , so they will both be in brackets multiplied by √x.
b is the only term with √y so it will be outside of the brackets.
So the answer will be:
(a - c)√x + b√y
We can check this by expanding the brackets:
(a - c)√x + b√y
= a√x - c√x + b√y
We can rearrange this to get the same original expression:
a√x - c√x + b√y
= a√x + b√y - c√x
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Answer:
Last option: (a - c)√x + b√y
I think it’s x+1 because of that