Step-by-step explanation:
move the 27 to the other side of the equation like this

use this equation and substitute it into the y value of the first equation
First we find the measurement of dark dot .
ANd for that we have to use the formula of the angle formed by the intersection of chord .
Let the dark dot be t.
So we have

t and z are linear pair and sum of angles of linear pair =180 degree.
So we get

Answer:
-5
Step-by-step explanation:
(-3)(5) =-15 +10 =-5
Answer:
(3,1)
Step-by-step explanation:
50 is not a perfect square because it doesn’t have a square root.
Hope this helped :)