Answer:
Improper fraction
Step-by-step explanation:
-36/12 is indeed an improper fraction. An improper fraction is usually a fraction where the numerator is larger than the denominator. Which in order for the fraction to be a "proper" fraction, the fraction has to have a numerator that is smaller than the denominator. Not only is this fraction an improper one, but it can also be heavily reduced (or simplified) by dividing the numerator/denominator by a common factor, which you would still have an improper fraction speaking how the numerator will still be greater than the denominator.
Hope this helps.
Since the real track has a gauge of 3 feet but the model railroad track has a gauge of 3/4 inches, the scale factor must be 1/4, because you must follow the rule
"true measurement * scale factor = model measurement"
In fact, we have
![3\cdot\dfrac{1}{4}=\dfrac{3}{4}](https://tex.z-dn.net/?f=3%5Ccdot%5Cdfrac%7B1%7D%7B4%7D%3D%5Cdfrac%7B3%7D%7B4%7D)
This implies that the original driving wheels height, 44 inches, must be scaled down to
![44\cdot\dfrac{1}{4}=11](https://tex.z-dn.net/?f=44%5Ccdot%5Cdfrac%7B1%7D%7B4%7D%3D11)
inches.
Answer:
the lowest is 30 and the highest is 36 then. subtract it you are going to have 6
x^2 - 5x + 6
ax*2 + bx + c
a = 1, b = - 5, c = 6