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an observer on the ground is x meters from the base of the launch pad of a rocket, which is at the same level as the observer. a few seconds
after the rocket takes off vertically, the observer sees its tip at an angle of from the horizontal. how far above the ground is the tip of the
rocket at that instant? assume that the ground is level.
tang
b.
x
sing
• c xtan
d. xsin a
excos 4
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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