9x^2 -6x +1+12=0
9x^2 -6x +13=0
factorise
(3x-1)(3x-1) =0
so, x= 1/3
Rational numbers are sometimes natural numbers.
The Meters of piping Needed to be purchased by the plumber are 6.096 meters.
HOPE I HELPED!
-"UNICORN"
For this case we must find the inverse of the following function:
For it:
Replace f (x) with y:
We exchange the variables:
We solve for y:
We subtract 7 on both sides of the equation:
We divide between 4 on both sides of the equation:
Finally, we change y by:
ANswer: