X = -6/29 is the correct answer
Answer:
x = -2 to x = 1
Step-by-step explanation:
A function is constant when the y value does not change (i.e. the graph is a horizontal line). This is true between x = -2 and x = 1.
B: 78.50
If you plug in 5 for r, then you get 3.14 * 25, which is equal to 78.5
Hope this helps!
Answer:
The second one! -5.99%
Step-by-step explanation:
The length of the rectangle is = 72 cm
The width of the rectangle is = 56 cm
Area of the rectangle is = ![length*width](https://tex.z-dn.net/?f=length%2Awidth)
=
cm²
As given, the other rectangle has the same area as this one, but its width is 21 cm.
Let the length here be = x
![4032=x*21](https://tex.z-dn.net/?f=4032%3Dx%2A21)
![x=\frac{4032}{21}=192](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B4032%7D%7B21%7D%3D192)
Hence, length is 192 cm.
We can see that as width decreases, the length increases if area is constant and when length decreases then width increases if area is constant.
So, in the new rectangle,constant of variation=k is given by,
or ![\frac{56}{21}=\frac{8}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B56%7D%7B21%7D%3D%5Cfrac%7B8%7D%7B3%7D)
Hence, the constant of variation is ![\frac{8}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B3%7D)