The degree of the expression is 2.
Answer:
The length of the river on a map is ![9.6\ cm](https://tex.z-dn.net/?f=9.6%5C%20cm)
Step-by-step explanation:
we know that
The scale of the map is ![1:5,000,000](https://tex.z-dn.net/?f=1%3A5%2C000%2C000)
That means
1 cm on a map is 5,000,000 cm on the actual
or
1 cm on a map is 50 km cm on the actual
so
using proportion
![\frac{1}{50}\frac{cm}{km}=\frac{x}{480}\frac{cm}{km}\\ \\x=480/50\\ \\x=9.6\ cm](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B50%7D%5Cfrac%7Bcm%7D%7Bkm%7D%3D%5Cfrac%7Bx%7D%7B480%7D%5Cfrac%7Bcm%7D%7Bkm%7D%5C%5C%20%5C%5Cx%3D480%2F50%5C%5C%20%5C%5Cx%3D9.6%5C%20cm)
<span>542.396828571 that is your answer </span>
Answer: Choice D) ![0 \le y \le 5](https://tex.z-dn.net/?f=0%20%5Cle%20y%20%5Cle%205)
This is because the smallest y can get is y = 0, while the largest it can get is y = 5. It can be anything in between these y values as well.
Visually, we look for the lowest and highest points. The range is the set of all possible y outputs. In contrast, the domain is the set of all allowed x inputs.