Answer:
(9/2, 7/2)
Step-by-step explanation:
The easiest way to remember how to do this problem is to average the x-coordinates and average the y-coordinates.
So, in your problem (-3 + 12)/2 = 9/2 and (-5 + 12)/2 = 7/2
The midpoint is (9/2, 7/2)
Answer:
8
Step-by-step explanation:
The answer is D since
4*4=16
16*4=64
64*4=256
Just put down no solution. It's unsolvable.
The perimeter of a rectangle is the sum of its sides, which are two widths and two lengths:
![p=w+w+l+l](https://tex.z-dn.net/?f=p%3Dw%2Bw%2Bl%2Bl)
Since the length is twice the width, we have
, and the formula for the perimeter becomes
![p=w+w+2w+2w=6w](https://tex.z-dn.net/?f=p%3Dw%2Bw%2B2w%2B2w%3D6w)
So, we have
![6w=120 \iff w=\dfrac{120}{6}=20](https://tex.z-dn.net/?f=6w%3D120%20%5Ciff%20w%3D%5Cdfrac%7B120%7D%7B6%7D%3D20)