Answer:
The expression would be 4x + 12. The second part woud be 16x + 48.
Step-by-step explanation:
(4n+1)=(2n-9)
the sum of four times a number and one is equal to the difference of twice the number and 9
Answer:
![EF = 13](https://tex.z-dn.net/?f=EF%20%3D%2013)
![GH = 5](https://tex.z-dn.net/?f=GH%20%3D%205)
![EH = 13](https://tex.z-dn.net/?f=EH%20%3D%2013)
Step-by-step explanation:
Given
The attached figure
![EG = 12](https://tex.z-dn.net/?f=EG%20%3D%2012)
![FG = 5](https://tex.z-dn.net/?f=FG%20%3D%205)
Solving (a): EF
Since m is a perpendicular bisector, then <EGF and <EGH are right-angled.
So, EF will be calculated using Pythagoras theorem which states:
![EF^2 = EG^2 + FG^2](https://tex.z-dn.net/?f=EF%5E2%20%3D%20EG%5E2%20%2B%20FG%5E2)
![EF^2 = 12^2 + 5^2](https://tex.z-dn.net/?f=EF%5E2%20%3D%2012%5E2%20%2B%205%5E2)
![EF^2 = 144 + 25](https://tex.z-dn.net/?f=EF%5E2%20%3D%20144%20%2B%2025)
![EF^2 = 169](https://tex.z-dn.net/?f=EF%5E2%20%3D%20169)
Take the positive square roots of both sides
![EF = \sqrt{169](https://tex.z-dn.net/?f=EF%20%3D%20%5Csqrt%7B169)
![EF = 13](https://tex.z-dn.net/?f=EF%20%3D%2013)
Solving (b): GH
Since m is a perpendicular bisector, then GH = FG
![FG = 5](https://tex.z-dn.net/?f=FG%20%3D%205)
![GH = FG](https://tex.z-dn.net/?f=GH%20%3D%20FG)
![GH = 5](https://tex.z-dn.net/?f=GH%20%3D%205)
Solving (c): EH
Since m is a perpendicular bisector, then EH = EF
![EF = 13](https://tex.z-dn.net/?f=EF%20%3D%2013)
![EH = EF](https://tex.z-dn.net/?f=EH%20%3D%20EF)
![EH = 13](https://tex.z-dn.net/?f=EH%20%3D%2013)
Answer: It's B how do I know? Cause I took the test.
B Ryder Used the Wrong formula for the total volume.
Step-by-step explanation: