Answer:
Distance is 8.485
Midpoint is (3,4)
Step-by-step explanation:
Use the points (-1,7) and (5,1)
Insert them into the equation and solve for D

Insert points into second equation to find midpoint

Answer:
12.4
Step-by-step explanation:
Answer: y=-x+-8
Step-by-step explanation:
Proof is in the screenshot below
Answer:
168
Step-by-step explanation: You would do 140/100 = 1.4 then multiply 120 by 1.4 which is 168.
Answer:
4900
Step-by-step explanation:
73*67
70*70
7*7(10^2)
49(100)
4900