Answer:
The First 1 is B. And the Second 1 is B. As well.
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
cannot be a or c cause it has a negative sign in front of it causing it to reflect over y axis. Cannot be B cause it doesn't have two coefficients with X. I also graphed it.
The surface are would be 81 bc the base area is 9 and you have four triangles with the area of 18. Add them all up and you get 81