Our solar system is unique in the sense that no other solar systems with planets like ours are known. the sun is a star but there are many stars in the universe. our sun is the closet one in earth. and its the only one in our solar system.
14515.2
Hope that this helped you!
A. set the top equation as x=something. you can do this by transforming functions.
answer x=2y-8
Then you substitute 2y-8 for x in the bottom problem. 4(2y-8) - 8y= 10.
Solve for y. you will get a false equation. -32=10. Proved.
B. we know that the lines are parallel. if the line don't have a solution that means that they don't intersect. that means they must be parallel because parallel lines never intersect.
Answer:
54 degrees
Step-by-step explanation:
180- 72 = 108
108 divided by 2 = 54
