The flight of a kicked football follows the quadratic function f(x)=−0.02x^2+2.2x+2, where f(x) is the vertical distance in feet and x is the horizontal distance the ball travels. How far, in feet, will the ball travel across the field by the time it hits the ground? Round your answer to one decimal place.

Umm.. just started this 2day and its not on my notes(p′︵‵。)

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.