3 Line segments CD and DB are tangent to circle A at point C and point B respectively. a.) What do you know about ∠�� and ∠��? Explain how you know.
b.) What do you know about the lengths of AB and AC? Explain how you know. c.) What do you know about the lengths of DB and DC? Explain how you know.

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