Answer:
m = -3
Step-by-step explanation:
The slope formula is y2 - y1 / x2 - x1
7 - -5 = 7 + 5 = 12
-4 - 0 = -4
12 / -4 = -3
I hope this helps :))
Answer:
Therefore,
![Length=12\ cm](https://tex.z-dn.net/?f=Length%3D12%5C%20cm)
![Width= 7\ cm](https://tex.z-dn.net/?f=Width%3D%207%5C%20cm)
Step-by-step explanation:
Let the Width of rectangle be 'x' cm.
Then the length of a rectangle will be (x + 5) cm.
Area of rectangle given is 84 cm squared.
To Find:
Length = (x+5) = ?
Width = x = ?
Solution:
We have area of rectangle given as
![\textrm{Area of Rectangle}=Length\times Width](https://tex.z-dn.net/?f=%5Ctextrm%7BArea%20of%20Rectangle%7D%3DLength%5Ctimes%20Width)
Substituting the given values we get
![84=(x+5)x\\x^{2} +5x-84=0\\](https://tex.z-dn.net/?f=84%3D%28x%2B5%29x%5C%5Cx%5E%7B2%7D%20%2B5x-84%3D0%5C%5C)
On factorizing we get
![x^{2} +12x-7x-84=0\\x(x+12)-7(x+12)=0\\(x+12)(x-7)=0\\(x+12)=0\ or\ (x-7)=0\\x=-12\ or\ x=7\\\therefore x =7\ cm\ \textrm{As x cannot be negative}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B12x-7x-84%3D0%5C%5Cx%28x%2B12%29-7%28x%2B12%29%3D0%5C%5C%28x%2B12%29%28x-7%29%3D0%5C%5C%28x%2B12%29%3D0%5C%20or%5C%20%28x-7%29%3D0%5C%5Cx%3D-12%5C%20or%5C%20x%3D7%5C%5C%5Ctherefore%20x%20%3D7%5C%20cm%5C%20%5Ctextrm%7BAs%20x%20cannot%20be%20negative%7D)
Therefore,
![Length=x+5=7+5=12\ cm](https://tex.z-dn.net/?f=Length%3Dx%2B5%3D7%2B5%3D12%5C%20cm)
Therefore,
![Length=12\ cm](https://tex.z-dn.net/?f=Length%3D12%5C%20cm)
![Width= 7\ cm](https://tex.z-dn.net/?f=Width%3D%207%5C%20cm)
Answer:
what the shape so i can find the area.
Step-by-step explanation:
Answer: 78.
Explaination:
To calculate the area of a triangle, multiply the height by the width aka the "base" then divide by 2.
In this case, the height is 13 and the width is 12.
.