Answer:
2 ( 24 ) + 2 a = 215
Step-by-step explanation:
Perimeter of the rectangle is 215 feet, the short sides are 24 feet long and we need to work out the long sides (we will call a long side 'a') so,
24 + 24 + a + a = 215
I can’t answer because I don’t have the picture of the triangle
Answer:
It would be the third one hope i helped
Step-by-step explanation:
Answer:
![m=\frac{-1}{4}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-1%7D%7B4%7D)
Step-by-step explanation:
A quadratic equation has one root if the discriminant is 0.
That is we need
for this particular question.
Compare the following to find
:
![ax^2+bx+c=0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%3D0)
![my^2+2y-4=0](https://tex.z-dn.net/?f=my%5E2%2B2y-4%3D0)
The variable
is representative of the variable
here.
![a=m](https://tex.z-dn.net/?f=a%3Dm)
![b=2](https://tex.z-dn.net/?f=b%3D2)
![c=-4](https://tex.z-dn.net/?f=c%3D-4)
Plug in into
:
![(2)^2-4(m)(-4)=0](https://tex.z-dn.net/?f=%282%29%5E2-4%28m%29%28-4%29%3D0)
![4+16m=0](https://tex.z-dn.net/?f=4%2B16m%3D0)
Subtract 4 on both sides:
![16m=-4](https://tex.z-dn.net/?f=16m%3D-4)
Divide both sides by 16:
![m=\frac{-4}{16}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-4%7D%7B16%7D)
Reduce:
![m=\frac{-1}{4}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-1%7D%7B4%7D)
Answer:
they need to sell 15,000 because 42 percent of 15,00 is 6,300+2500=800
the inequality should be. 2500+0.42s≥8,800
and the number line should have a closed point on 15,000 with the line pointing to the right