if you have base ten blocks you can figure out the answer
Answer:
x² + y² = 85
Step-by-step explanation:
Using the expansion
(x - y)² = x² + y² - 2xy , then
x² + y² - 2xy = (x - y)² ( add 2xy to both sides )
x² + y² = (x - y)² + 2xy ← substitute given values
= 9² + 2(2)
= 81 + 4
= 85
Answer:
slope= -2/5
Step-by-step explanation:
(7,7)(12,5)
7-5
/ = 2/-5
7-12
4:6
6:9
12:18
And it goes on