Answer:
I believe the answer would be: Half of a teaspoon of vanilla.
Step-by-step explanation:
Answer:
Jeff mows 9 yards of lawn in 30 minutes
Step-by-step explanation:
The equation that models the amount of time (t) in minutes it takes Jeff to mow an average sized yard is
, where n is the number of yards he mows.
To find the number of yards Jeff mows in 30 minutes, we set the equation to 30 and solve for n.
![\implies 2n+12=30](https://tex.z-dn.net/?f=%5Cimplies%202n%2B12%3D30)
Add -12 to both sides:
![\implies 2n=30-12](https://tex.z-dn.net/?f=%5Cimplies%202n%3D30-12)
![\implies 2n=18](https://tex.z-dn.net/?f=%5Cimplies%202n%3D18)
Divide both sides by 2
![\implies \frac{2n}{2}=\frac{18}{2}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cfrac%7B2n%7D%7B2%7D%3D%5Cfrac%7B18%7D%7B2%7D)
![\implies n=9](https://tex.z-dn.net/?f=%5Cimplies%20n%3D9)
Hence Jeff mows 9 yards of lawn in 30 minutes.
D because some of the inputs have the same output therefor it is not a function
x^2-9x-6=0
Use the quadratic formula to get (9+sqrt(105))/2 or (9-sqrt(105))/2