- Woah... If you evaluate it it's be -0.2 = 136 and since there's not really that much unless you want it to be proven to be false then my guess is that it's '-0.2'.
<em>- Ouma</em>
I can help too yo, just post the questions and stuff like that
90
Plug in 7 for x and solve.
![{y}^{2} + 5y + 6](https://tex.z-dn.net/?f=%7By%7D%5E%7B2%7D%20%20%2B%205y%20%2B%206)
![{(7)}^{2} + 5(7) + 6](https://tex.z-dn.net/?f=%7B%287%29%7D%5E%7B2%7D%20%20%2B%205%287%29%20%2B%206)
![49 + 35 + 6](https://tex.z-dn.net/?f=49%20%2B%2035%20%2B%206)
![90](https://tex.z-dn.net/?f=90)
18a+9 would be the simplified expression
It can be modeled by an exponential function, f(x) is divided by 3 each time x increases by 1.
This means that the base of the exponential function is 1/3, and since the value of f(x) when x=0 is 81, ![f(x)=81\left(\frac{1}{3} \right)^{x}](https://tex.z-dn.net/?f=f%28x%29%3D81%5Cleft%28%5Cfrac%7B1%7D%7B3%7D%20%5Cright%29%5E%7Bx%7D)