A ball is thrown from a height of 45 meters with an initial downward velocity of 12 meters per second. the ball's height h (in meters) after t seconds is given by the following: h=45-12t-5t^2 . How long after the ball is thrown does it hit the ground. Round the answer(s) to the nearest hundredth.

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

The trigonometric ratios sine and secant are reciprocals of each other

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?