V=4/3 x pi r cubed thats the ewuation for the volume of a sphere
Perpendicular means the slopes are opposite inverse of each other
If line a is slope 2, the perpendicular line to Line a would have a slope - 1/2
Difference in y over difference in x gives slope. If they are opposite inverse values the lines are perpendicular. ( in this case the answer is true.)
Solution: The commutative property of addition states that when two numbers are being added, their order can be changed without affecting the sum.
Is it subtract by 2? So I think it would be 27,25,23,21, 19