A large chess tournament begins with 256 players. After each round , r, half of the players remain for a complete response: express what your thinking in words: label any figures you draw ; identify any formulas you use ; make clear the source of any numbers you see.

The triangles are similar. what is the value of x? show your work.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.