The path of a ball in flight is given by h(x) = -0.23(x - 3.4)^2 + 4.2 where x is the horizontal distance in meters and h(x) is the height in meters.
1) Find h(2) and give a real-world meaning for this value,
2) Find the x-values for h(x) = 2, and describe the real-world meaning of these values.
3) How high was the ball when it was released?
4) How far will the ball go before it hits the ground?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0