Solve for the variables in each triangle below.

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

Solve the triangle. a = 21°, c = 105°, c = 5

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x