Aball is thrown from a height of 45 meters with an initial downward velocity of 10 m/s. the ball's height h (in meters) after t seconds is given by the following. h=45-10 t- 5 t^2. how long after the ball is thrown does it hit the ground?

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Express -5 2/5 as an improper fraction.