Answer:
38 m/s
Step-by-step explanation:
We are given that
D represent Rachel's remaining distance( in meters ) as a function of time is given by
![D=-38t+220](https://tex.z-dn.net/?f=D%3D-38t%2B220)
We have to find the Rachel's speed.
We know that
![Velocity=\frac{ds}{dt}](https://tex.z-dn.net/?f=Velocity%3D%5Cfrac%7Bds%7D%7Bdt%7D)
Substitute the values then we get
![v=\frac{d(-38t+220)}{dt}=-38 m/s](https://tex.z-dn.net/?f=v%3D%5Cfrac%7Bd%28-38t%2B220%29%7D%7Bdt%7D%3D-38%20m%2Fs)
![Speed =\mid v\mid](https://tex.z-dn.net/?f=Speed%20%3D%5Cmid%20v%5Cmid)
![Speed =\mid -38\mid =38m/s](https://tex.z-dn.net/?f=Speed%20%3D%5Cmid%20-38%5Cmid%20%3D38m%2Fs)
Hence, the Rachel's speed is given by =38 m/s
The equation which relates the change in price per sticker purchased is y = 2.05x
- The number of stickers purchased = 10
The change in price per sticker purchased can be expressed as :
- Price change / number of stickers
- Change in price per sticker = $20.50 / 10
- Change in price per sticker purchased = 2.05
Therefore, the required equation which related y and x is :
y = 2.05x
Learn more :brainly.com/question/13218948
Answer:
Step-by-step explanation:
Given that:
R(x) =
+ 34x − 17
As we know that derivative of revenue function is marginal revenue function .
We will use following rules of derivative
=> dR/ dx =
=> R' (x) =
=> R '(2000) =
= 34
The revenue when 2000 units are sold is:
R(2000) =
+ 34*2000 − 17 = $69,783
Answer:
If we mean - √9, then it is a rational number.
Step-by-step explanation: