Answer:
3
Step-by-step explanation:
We have c(t) = 350t and b(c) = 12c
The composite function that expresses the calories as function of time is given by
b[c(t)] = 12[350t]
b[c(t)] = 420t
Correct answer: B
Answer:
B.
Step-by-step explanation:
The line shows that X is less than or equal to 1.
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>