Answer:
Step-by-step explanation:
Result:
-x = -12 Y = 3
Solution:
x = -3, Y = -1/4
Answer: #13 is 26, #14 is 18
Step-by-step explanation:
13.
The whole line has length
, and
. Thus

Now we plug this into
(since this is the length of BC) to get
.
14.
We can use the fact that CG = GD, so
and thus
.
We know
, so
