Measurement of angle DEF would equal 180 because 71 plus 109 is 180
I don't know how to set up a diagram for this, but I could write an expression. 20*4= x
sorry, but I hope this helps. I not even sure my expression is correct.
It is 6 was not multiplied by 3
The answer should be 6(m+3)= 6m+ 18
Answer:

Step-by-step explanation:
We can prove that a tangent will always be perpendicular to the radius touching it. So, the other angle in the diagram is
.
Because all the angles of a triangle sum to
, we have that
.
We combine like terms on the left side to get
.
We subtract
on both sides to get
.
So,
and we're done!
The range of a function is the y-value or output
-6,3 and 9 are the range for this relation