The common denominator is 40.
Answer:
For a function f(x,y) in two variables we have
![df=\frac{\partial f}{\partial x}dx+\frac{\partial f}{\partial y}dy](https://tex.z-dn.net/?f=df%3D%5Cfrac%7B%5Cpartial%20f%7D%7B%5Cpartial%20x%7Ddx%2B%5Cfrac%7B%5Cpartial%20f%7D%7B%5Cpartial%20y%7Ddy)
We have
![f(x,y)=2x+3y-xy\\\\\therefore \frac{\partial f}{\partial x}=2-y\\\\\frac{\partial f}{\partial y}=3-x\\\\](https://tex.z-dn.net/?f=f%28x%2Cy%29%3D2x%2B3y-xy%5C%5C%5C%5C%5Ctherefore%20%5Cfrac%7B%5Cpartial%20f%7D%7B%5Cpartial%20x%7D%3D2-y%5C%5C%5C%5C%5Cfrac%7B%5Cpartial%20f%7D%7B%5Cpartial%20y%7D%3D3-x%5C%5C%5C%5C)
![df=(2-y)dx+(3-x)dy\\\\\Delta f=(2-y)\Delta x+(3-x)\Delta y](https://tex.z-dn.net/?f=df%3D%282-y%29dx%2B%283-x%29dy%5C%5C%5C%5C%5CDelta%20f%3D%282-y%29%5CDelta%20x%2B%283-x%29%5CDelta%20y)
Applying values we get
![df=(2-y)dx+(3-x)dy\\\\\Delta f=(2-1)(3-2.95)+(3-3)(1-1.04)\\\\\Delta f=0.05](https://tex.z-dn.net/?f=df%3D%282-y%29dx%2B%283-x%29dy%5C%5C%5C%5C%5CDelta%20f%3D%282-1%29%283-2.95%29%2B%283-3%29%281-1.04%29%5C%5C%5C%5C%5CDelta%20f%3D0.05)
X^2 - 5x + 6
(x - 3)(x - 2)
The answer is: (x - 3)(x - 2).
Answer:
Step-by-step explanation:
(2x-9)(x+39)
2x^2 + 78x - 9x -351
2x^2 + 69x - 351
Answer:
The answer to your question is:
Step-by-step explanation:
8.-
A (8, 28)
B (0, 0)
m = (0- 28) / (0 - 8)
m = 7/2
y = (7/2) x
A( 16, 4)
B (0,0)
m = (0-4) / (0 - 16)
m = 1/4
y = (1/4) x
The constant of proportionality represents the slope of the line
9.-
a) (0,0) represents the start of the race.
b)
Horse A = 5 min
Horse B = 4 min