A 40-foot extensions ladder leans against the side of a building. Find the distance h, to the nearest tenth of a foot up the side of the building, if the angle of elevation of the ladder is 52º.

What statement is true? 2x^2-9x+2=-1

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?