Answer:1 is black hole and description is atract all matter and energy
2 is nebula a low mass star that has shed its outer layer
3 is white dwarf shells that are cast awat from a low mass star
4 is red super giant a heavy star that expands and gives off large amounts of light
Answer:
x=9
Step-by-step explanation:
Answer:
3x^2 is the final solution
See the image below for step by step explanation.
The surface area would be 33.6