A chord of a circle is l cm long. The distance of the chord to the center of the circle is h cm and the radius of the circle is r cm. express r in terms of l and h​

Ineed with number 17 i don’t get it at alll

What is the factor form of x^2-9x+14

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.