Answer:1.25
Step-by-step explanation:Because if you multiply 5,8,14,18,32 to 1.25 they all equal to 7.5,12,21,28.5,48
The answer is D but i could be wrong
Answer:
Q'(-2 , 5)
Step-by-step explanation:
Note that:
1) When you are reflecting over the x-axis, you are changing the sign for the y.
2) When you are reflecting over the y-axis, you are changing the sign for the x.
In this case, you are reflecting over the y-axis. Change the sign of the x:
Q(2 , 5) ⇒ Q'(-2 , 5)
Q'(-2 , 5) is your answer.
~
Answer:
a. ![\frac{- 42,500}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-%2042%2C500%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
Step-by-step Explanation:
Given:
Distance Ottawa to Québec = 425 km
Initial flight rate = v + 60
Return flight rate = v - 40
![t = \frac{d}{r}](https://tex.z-dn.net/?f=%20t%20%3D%20%5Cfrac%7Bd%7D%7Br%7D%20)
Required:
Flight times difference of the initial and return flights
Solution:
=>Flight time of the initial flight:
![t = \frac{d}{r}](https://tex.z-dn.net/?f=%20t%20%3D%20%5Cfrac%7Bd%7D%7Br%7D%20)
![t = \frac{425}{v + 60}](https://tex.z-dn.net/?f=%20t%20%3D%20%5Cfrac%7B425%7D%7Bv%20%2B%2060%7D%20)
=>Flight time of the return flight:
![t = \frac{425}{v - 40}](https://tex.z-dn.net/?f=%20t%20%3D%20%5Cfrac%7B425%7D%7Bv%20-%2040%7D%20)
=>Difference in flight times:
![\frac{425}{v + 60} - \frac{425}{v - 40}](https://tex.z-dn.net/?f=%20%5Cfrac%7B425%7D%7Bv%20%2B%2060%7D%20-%20%5Cfrac%7B425%7D%7Bv%20-%2040%7D%20)
![\frac{425(v - 40) -425(v + 60)}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B425%28v%20-%2040%29%20-425%28v%20%2B%2060%29%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
![\frac{425(v) - 425(40) -425(v) -425(+60)}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B425%28v%29%20-%20425%2840%29%20-425%28v%29%20-425%28%2B60%29%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
![\frac{425v - 17000 -425v - 25500}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B425v%20-%2017000%20-425v%20-%2025500%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
![\frac{425v - 425v - 17000 - 25500}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B425v%20-%20425v%20-%2017000%20-%2025500%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
![\frac{- 42,500}{(v + 60)(v - 40)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-%2042%2C500%7D%7B%28v%20%2B%2060%29%28v%20-%2040%29%7D%20)
Answer:
6(e+4n)
Step-by-step explanation:
(mark brainliest if you want, thx)