Answer:
![a = 10](https://tex.z-dn.net/?f=a%20%3D%2010)
Step-by-step explanation:
Given
![Initial\ Velocity\ (u) = 20m/s](https://tex.z-dn.net/?f=Initial%5C%20Velocity%5C%20%28u%29%20%3D%2020m%2Fs)
![Final\ Velocity\ (v) = 60m/s](https://tex.z-dn.net/?f=Final%5C%20Velocity%5C%20%28v%29%20%3D%2060m%2Fs)
![Time = 4s](https://tex.z-dn.net/?f=Time%20%3D%204s)
Required
Determine the acceleration
This question will be answered using the first equation of motion.
![v = u + at](https://tex.z-dn.net/?f=v%20%3D%20u%20%2B%20at)
Substitute values for v, u and t
![60 = 20 + 4 * a](https://tex.z-dn.net/?f=60%20%3D%2020%20%2B%204%20%2A%20a)
![60 = 20 + 4 a](https://tex.z-dn.net/?f=60%20%3D%2020%20%2B%204%20a)
Subtract 20 from both sides
![60 - 20= 20 -20 + 4 a](https://tex.z-dn.net/?f=60%20-%2020%3D%2020%20-20%20%2B%204%20a)
![40= 4 a](https://tex.z-dn.net/?f=40%3D%20%204%20a)
Divide both sides by 4
![10 = a](https://tex.z-dn.net/?f=10%20%3D%20a)
![a = 10](https://tex.z-dn.net/?f=a%20%3D%2010)
<em>Hence, the acceleration is 10m/s/s</em>
The answer is 216 cubic feet. How? All you have to do is multiply every number then divide it by 2. Like this: 2*12*18=432. 432/2= 216 cubic feet.
If u need the work but simple answer is 105
Hi!
The answer to <span>3-2x>-5 is
x<4
Steps:
</span>Step 1: Simplify both sides of the inequality.<span><span><span>−<span>2x</span></span>+3</span>><span>−5
</span></span>Step 2: Subtract 3 from both sides.<span><span><span><span>−<span>2x</span></span>+3</span>−3</span>><span><span>−5</span>−3</span></span><span><span>−<span>2x</span></span>><span>−8
</span></span><span>Step 3: Divide both sides by -2.
Hope that helped!</span>