Answer:
R(s)
,
Step-by-step explanation:
The function R(s) = 20s
She needs to sell at least 100 subscriptions, so the least amount she wants to have is: 20*100 = $2000
Hence, is the domain of R(s) in this context
R(s)
Hope it will find you well
The answer really depends on what b is. Unless you give me a number for what b equals I can’t solve it.
Answer:
7x + 8
Step-by-step explanation:
2×2+7x+4
4 + 7x + 4
7x + 8
![\bf \textit{parabola vertex form}\\\\ \boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\ x=a(y-{{ k}})^2+{{ h}}\qquad\qquad vertex\ ({{ h}},{{ k}})\\\\ -----------------------------\\\\ y=a(x-h)^2+k\qquad \begin{cases} h=-2\\ k=-3 \end{cases}\implies y=a[x-(-2)]^2-3 \\\\\\ y=(x+2)^2-3](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Bparabola%20vertex%20form%7D%5C%5C%5C%5C%0A%5Cboxed%7By%3Da%28x-%7B%7B%20h%7D%7D%29%5E2%2B%7B%7B%20k%7D%7D%7D%5C%5C%5C%5C%0Ax%3Da%28y-%7B%7B%20k%7D%7D%29%5E2%2B%7B%7B%20h%7D%7D%5Cqquad%5Cqquad%20%20vertex%5C%20%28%7B%7B%20h%7D%7D%2C%7B%7B%20k%7D%7D%29%5C%5C%5C%5C%0A-----------------------------%5C%5C%5C%5C%0Ay%3Da%28x-h%29%5E2%2Bk%5Cqquad%20%0A%5Cbegin%7Bcases%7D%0Ah%3D-2%5C%5C%0Ak%3D-3%0A%5Cend%7Bcases%7D%5Cimplies%20y%3Da%5Bx-%28-2%29%5D%5E2-3%0A%5C%5C%5C%5C%5C%5C%0Ay%3D%28x%2B2%29%5E2-3)
expand the binomial, either binomial theorem, or just FOIL
bear in mind, we're assuming the coefficient "a" is 1
and we're also assuming is the first form, it could be the second, but we're assuming is a vertical parabola
