Answer:
Step-by-step explanation:
The midpoint of any line segment is the average of the x- and y-values of the two endpoints.
Therefore, the midpoint of is .
So, the answer is and we're done!
Answer:
15
Step-by-step explanation:
Answer:
124
Step-by-step explanation:
4a + 3 - 9 = -7 + 2 + a
4a - 6 = -5 + a
4a - a = -5 + 6
3a = 1 / : 3
a = 1/3