How do you know that the sun it ( -2 3/4) and 5/9 is rational

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth