Given :
The scale of a model train is 1 inch to 13.5 feet.
One of the cars of the model train is 5 inches long.
To Find :
The length, in feet, of the actual car.
Solution :
It is given that scale of the model is 1 inch to 13.5 feet. It means that 1 inch in the actual scale is equal to 13.5 feet in real.
So, length of car real is :
Length = 5 × 13.5 feet
Length = 67.5 feet
Therefore, the length of the actual car is 67.5 feet.
Answer:im not sure what u mean
Step-by-step explanation:
Answer:
4.27x10^2
Step-by-step explanation:
Answer:
a = 4
Step-by-step explanation:
a+8 = 12
a= 12-8
a=4
Answer:
![f\left(x\right)=\cos\left(x\right)\: and\:\: g\left(x\right)=\left(2x^2-1\right)](https://tex.z-dn.net/?f=f%5Cleft%28x%5Cright%29%3D%5Ccos%5Cleft%28x%5Cright%29%5C%3A%20and%5C%3A%5C%3A%20g%5Cleft%28x%5Cright%29%3D%5Cleft%282x%5E2-1%5Cright%29)
Step-by-step explanation:
We have, ![H\left(x\right)=\cos\left(2x^2-1\right)H ( x )](https://tex.z-dn.net/?f=H%5Cleft%28x%5Cright%29%3D%5Ccos%5Cleft%282x%5E2-1%5Cright%29H%20%28%20x%20%29)
![=\cos\left(2x^2-1\right)](https://tex.z-dn.net/?f=%3D%5Ccos%5Cleft%282x%5E2-1%5Cright%29)
And ![H\left(x\right)=\left(f\:\circ\:g\right)\left(x\right)H ( x ) = \left(f\:\circ\:g\right)( x )](https://tex.z-dn.net/?f=H%5Cleft%28x%5Cright%29%3D%5Cleft%28f%5C%3A%5Ccirc%5C%3Ag%5Cright%29%5Cleft%28x%5Cright%29H%20%28%20x%20%29%20%3D%20%5Cleft%28f%5C%3A%5Ccirc%5C%3Ag%5Cright%29%28%20x%20%29)
![\Rightarrow \left(f\:\circ\:g\right)(x)=\cos\left(2x^2-1\right)](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cleft%28f%5C%3A%5Ccirc%5C%3Ag%5Cright%29%28x%29%3D%5Ccos%5Cleft%282x%5E2-1%5Cright%29)
Now,
and ![g\left(x\right)=\left(2x^2-1\right)](https://tex.z-dn.net/?f=g%5Cleft%28x%5Cright%29%3D%5Cleft%282x%5E2-1%5Cright%29)