If five is a factor, it means that number can be evenly divided by five. Think about it like you're counting by fives or doing the fives times tables.
5, 10, 15, 20, 25, 30, 35, 40, 45, 50 etc.
As you can see, the only numbers that are in the ones place are 5 and 0.
Hope that helps!
-4x^2-5(x+3)+x^2 :
-4x^2-5x-15+x^2
-3x^2- 5x -15
Answer:

Step-by-step explanation:
![(e^x)'=e^x\\\\\bigg[f\bigg(g(x)\bigg)\bigg]'=f'\bigg(g(x)\bigg)\cdot g'(x)\\\\\left(\dfrac{1}{x}\right)'=-\dfrac{1}{x^2}\\\\====================](https://tex.z-dn.net/?f=%28e%5Ex%29%27%3De%5Ex%5C%5C%5C%5C%5Cbigg%5Bf%5Cbigg%28g%28x%29%5Cbigg%29%5Cbigg%5D%27%3Df%27%5Cbigg%28g%28x%29%5Cbigg%29%5Ccdot%20g%27%28x%29%5C%5C%5C%5C%5Cleft%28%5Cdfrac%7B1%7D%7Bx%7D%5Cright%29%27%3D-%5Cdfrac%7B1%7D%7Bx%5E2%7D%5C%5C%5C%5C%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D)

Answer:
A satellite is a moon, planet or machine that orbits a planet or star. ... Usually, the word "satellite" refers to a machine that is launched into space and moves around Earth or another body in space. Earth and the moon are examples of natural satellites. Thousands of artificial, or man-made, satellites orbit Earth.
Step-by-step explanation: