Answer:

Step-by-step explanation:
Given


Required
Eliminate a
Multiply the first equation by -4

Add to the second equation

Solve brackets

Open bracket


At this point, a has been eliminated;
From the list of given options, the option that answers the question is 
X+y=180
they are adjacent angles
x=50
y=130
Answer:
6 in
Step-by-step explanation:
A= bh
18 as our area= 3 as our base and (x) as the height
18/3 = 6
so 6 is the height
Let's make sure that the answer is right:
A= bh
A= 3(6)
A= 18
The scale factor of TRAP to EZYD is 1.25.
<h3>
What is dilation</h3>
Dilation is the increase or decrease in the size of a figure by a scale factor of k. If k > 1 it is an increase and if k < 1, it is a decrease.
To find the scale factor of TRAP to EZYD:
Scale factor = ZE / TR = 15 / 12 = 1.25
The scale factor of TRAP to EZYD is 1.25.
Find out more on dilation on: brainly.com/question/10253650
Answer:
Step-by-step explanation:
Circumscribed means written around the outside. -scribe means writing and
think of how circumference is the distance around the outside of a circle. It is a little more special and specific...all the segments that make the triangle are tangents to the circle, that is, they only touch the circle at one point.
So the circle is inscribed-- that is, written inside of the triangle (in the same, special specific way).
Circle A is inscribed in triangle RST.