The coordinates G(7, 3), H(9, 0), I(5, -1) form what type of polygon? an obtuse triangle
an acute triangle
an equilateral triangle
a right triangle

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3