Distance between two points is
Root of X2 - X1 squared + Y2 - Y1 squared
So here X2 is 0 X1 is 0 as the origin is 0,0
Root of Y2-Y1 squared is what we are left with
Root of -2- -3 squared
Root of 1 squared
Root of 1
Which is 1
Distance is 1
On side is 20 Bc L= 30 (L x 2)
=> 60
=> 100 - 60
=> 40 = W
=> W / 2
=>20
1 Side is 20
Hope I Helped
Basically, this problem is saying that if you multiply x by 3, then you will get a number that is one less than y. So, if you switch that around a bit, then the problem is saying that if you subtract 3x from y, you'll get 1.
Your final answer should be y - 3x = 1.
It would be the points (0,80) and (15,10)
<span>-8(n+3)+28=-5n-5
-8n-24+28=-5n-5
</span>-8n+4=-5n-5
-8n+4-4=-5n-5-4
-8n=-5n-9
-8n+5n=-5n+5n-9
-3n=-9
-3n/-3=-9/-3
n=3
n=3 is the correct answer
