the two triangles above are similar. The length of BC is 42 feet. The lenght if CA is 21 feet. The length if FD is 14 feet. What is the length of EF

This is so hard and it’s for a test

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.

How many roots does the graphed polynomial function have? 1-02