Answer:
13
Step-by-step explanation:
We need to use the Pythagorean Theorem to solve this problem:
, where a and b are the legs of the right triangle and c is the hypotenuse
In this case, we already know b (b = 84) and c (c = 85), so we need to solve for a:

Thus, a = y = 13.
Answer:
Please ask a question so the community can help answer it and it has to be a school subject not a real life situation.
Answer: 57 pennies and 63 quarters
Step-by-step explanation: