Yes! It is correct!!!!!!!
The midpoint is their average.
.. ((15, -1) +(9, -5))/2 = ((15+9)/2, (-1-5)/2) = (12, -3)
Is 8 I am not sure at all
Very wrong. Not a random selection, only men when you want all students, if they play at school then they probably dont play outside or other way around, biased selection, etc.
Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.So the equation to solve this would be simply 90 multiply 2 which gives you the answer of 180 degree in this situation.
