Answer:
I wanna say that it's A. curved lines.
To figure this out, subtract 15 from 7 and you get –8. So your answer is -8˚ C.
Hope that helps:)
They would be putting 840 each year, so each of them will be putting 420.
This is a right triangle, the measure of angle A is 90 degrees.
First thing to do I guess is finding B and C.
tan^-1 (7/12) = 30 degrees
tan^-1 (12/7) = 60 degrees
60 + 30 = 90
180 - 90 = 90. Therefore angle A = 90 degrees
