Answer:
![2(b - 9) \geqslant 26](https://tex.z-dn.net/?f=2%28b%20-%209%29%20%5Cgeqslant%2026)
Step-by-step explanation:
difference of a number and 9 means to subtract
![b - 9](https://tex.z-dn.net/?f=b%20-%209)
twice that means multiply by 2
![2(b - 9)](https://tex.z-dn.net/?f=2%28b%20-%209%29)
at least is greater than or equal to
![2(b - 9) \geqslant 26](https://tex.z-dn.net/?f=2%28b%20-%209%29%20%5Cgeqslant%2026)
Answer:
![v=\sqrt{\frac{E}{m}}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7BE%7D%7Bm%7D%7D)
Step-by-step explanation:
The formula is given as:
![E=mv^2](https://tex.z-dn.net/?f=E%3Dmv%5E2)
We need to solve this formula for v, that means that v to one side and let it be solved in terms of the other variables (E and m). First, we isolate v:
![E=mv^2\\\frac{E}{m}=\frac{mv^2}{m}\\\frac{E}{m}=v^2](https://tex.z-dn.net/?f=E%3Dmv%5E2%5C%5C%5Cfrac%7BE%7D%7Bm%7D%3D%5Cfrac%7Bmv%5E2%7D%7Bm%7D%5C%5C%5Cfrac%7BE%7D%7Bm%7D%3Dv%5E2)
To isolate v, and eliminate the "square", we need to take square roots of both sides, that will give us v in terms of the other variables:
![\frac{E}{m}=v^2\\\sqrt{\frac{E}{m}}=\sqrt{v^2}\\\sqrt{\frac{E}{m}}=v](https://tex.z-dn.net/?f=%5Cfrac%7BE%7D%7Bm%7D%3Dv%5E2%5C%5C%5Csqrt%7B%5Cfrac%7BE%7D%7Bm%7D%7D%3D%5Csqrt%7Bv%5E2%7D%5C%5C%5Csqrt%7B%5Cfrac%7BE%7D%7Bm%7D%7D%3Dv)
Putting v to left side (convention), we finally have:
![v=\sqrt{\frac{E}{m}}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7BE%7D%7Bm%7D%7D)
Answer:
C) 2,2,2.82842712
Step-by-step explanation:
First one is 1 x 10^6
second is 2 x 10^8
third one is 157 times
Answer:
452.39 mi^2
Step-by-step explanation:
A = πr^2
A = π (12mi)^2
A = 452.39 mi^2
Please mark Brainliest :D
Please mark Brainliest :D