I know the answer is 1 but I need to show it with positive and negative tiles and I don’t know what to put. Draw Algebra Tiles to help you solve the following question:
4 - (-5) =

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Identify the number as a rational or irrational.explain. 127

Bring the fraction a/a-4 to a denominator of 16-a^2