A three-dimensional model of Lucia’s apartment is shown. To cool the whole apartment, an air conditioner must provide 2.5 BTUs per cubic foot. A rectangular prism is shown. The rectangle has sides lengths of 20 feet and 48 feet. The height of the prism is 10 feet. A smaller rectangular prism is cut out of the side. It has side lengths of 9 feet and 16 feet and a height of 10 feet.

How many BTUs are needed to cool Lucia’s apartment?

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