Note that this a right-angled triangle with the right angle at Y.
<span>Use coordinates of the point to find XY and YZ </span>
<span>XY = 21 - (-3) </span>
<span>= 24 </span>
<span>YZ = 4 - (-6) </span>
<span>= 10 </span>
<span>Use Pythagoras theorem to XZ </span>
<span>XZ = sqrt[24^2 + 10^2] </span>
<span>= 26 </span>
<span>Perimeter = 26 + 24 + 10 </span>
<span>= 60</span>
Answer: -4 by Y 7
Step-by-step explanation:
X=7 5x8 is 40x and 5x4 is 20 take away 20 from both sides so it looks like this 40x=280 then divide by 40
Answer:
Step-by-step explanation:
We can add the two equations to eliminate the variable 
and solve for 
:
Now, we can use substitution to solve for :
(given)
Hope this helps :)
