4x² - 3xy + 9y² - 3(5xy + 7y²)
4x² - 3xy + 9y² - 3(5xy) - 3(7y²)
4x² - 3xy + 9y² - 15xy - 21y²
4x² - 3xy - 15xy + 9y² - 21y²
4x² - 18xy - 12y²
Answer:
Shortest distance=|AC|/
.
Kindly find the attached for the figure
Step-by-step explanation:
This problem can be addressed using right-angled,
Let have right angle triangle with the shortest distance=hypotenuse;
hypotenuse=|AC|
using pythagoras theorem, we have
|AC|^2=|AB|^2+|BC|^2
Let |AB|=|BC|
|AC|^2=2|AB|^2
|AB|=|AC|/![\sqrt[2]{2}](https://tex.z-dn.net/?f=%5Csqrt%5B2%5D%7B2%7D)
Shortest distance=|AC|/![\sqrt[2]{2}](https://tex.z-dn.net/?f=%5Csqrt%5B2%5D%7B2%7D)
12 I think because you take 22 divided by 1 and 5/6.
Answer:
$3.85 per gallon.
Step-by-step explanation:
48.51 / 12.6 = 3.85
1. analyze data presented
It is not d because it is not greater than 80 degrees
it is not a because it is clearly not 10 degrees
making system of equations
8x+(4x+60)=180
addition
12x+60=180
move sixty to the other side
12x=120
division
x=10
Angle BEC=*x, so 8x=80
Answer: 80 degrees