Answer:
Step-by-step explanation:
square of 15 + square of x = square of 21
225 + square of x = 441
441 - 225 = 216
x = 216
Answer:
wait writing on a piece of paper
The answer, from my own personal experience, is a raisin. Hope this helps!
A^2+b^2=c^2
7^2+11^2=?
49+121=170
x= Square root of 170
Hope this helps!! :)
When you add a positive and a negative like you did here it basically is the same as subtracting 5 from 3