Answer:
Following are the solution to the given points:
Step-by-step explanation:
p= amount at any time
then 
at time 
y= amount at any times
For point a:
For point b:
![\frac{dy}{20000+0.07 y}=dt\\\\\frac{1}{0.07}|n(\frac{0.07y+20000}{20000})=t\\\\\frac{0.07y}{20000}+1=e^{0.07t}\\\\y=7.1428\times 10^4[e^{0.07t} -1]\\\\y=\frac{20000}{0.07}[e^{0.07t}-1]\\\\](https://tex.z-dn.net/?f=%5Cfrac%7Bdy%7D%7B20000%2B0.07%20y%7D%3Ddt%5C%5C%5C%5C%5Cfrac%7B1%7D%7B0.07%7D%7Cn%28%5Cfrac%7B0.07y%2B20000%7D%7B20000%7D%29%3Dt%5C%5C%5C%5C%5Cfrac%7B0.07y%7D%7B20000%7D%2B1%3De%5E%7B0.07t%7D%5C%5C%5C%5Cy%3D7.1428%5Ctimes%2010%5E4%5Be%5E%7B0.07t%7D%20-1%5D%5C%5C%5C%5Cy%3D%5Cfrac%7B20000%7D%7B0.07%7D%5Be%5E%7B0.07t%7D-1%5D%5C%5C%5C%5C)
For point c:
Radiation from the sun heats the Earth's surface by means of rays that are trapped in the atmosphere and allow the Earth to have constant heat.
<h3>How is the Earth's surface heated?</h3>
The surface of the Earth heats up due to the sun's rays that hit it and when they enter the atmosphere they are reflected on the surface being trapped between the atmosphere and the surface.
Another important aspect to keep in mind is that the rays strike at different angles throughout the Earth, for example:
- In the equatorial zone they affect directly, so this zone tends to be more quality than others in which the rotation and translation of the Earth cause the rays to enter in less or more quantity throughout the year.
Learn more about solar rays in: brainly.com/question/919704
Answer:
D
Step-by-step explanation:
It's a repeating pattern
Answer:
$45.5
Step-by-step explanation:
3.25 times 14 is 45.5
Answer:
The third one
Step-by-step explanation:
Slope is rise/run
This graphs shows the line going up by 2 and to the right 3
