Answer:

Step-by-step explanation:
we know that
A
right triangle has two equal legs
Let
x-----> the length side of the leg of the triangle
y------> the length side of the hypotenuse


so

in this problem we have

substitute the value of y and solve for x



The number in the "tens" place is eight (8).
Answer:
Yes, She is correct.
Step-by-step explanation:
Pythagorean theorem:
base² + altitude² = hypotenuse²
k² + k² = j²
Add the like terms. Like terms have same variable with same power.
2k² = j²
Answer:
irrational
Step-by-step explanation:
I ma taking algebra 2 also so i can help any time