cho tam giác ABC vuông tại A. vẽ đường cao AH, lấy D thuộc AC. E là hình chiếu của A trên BD. CM:a, BE. BD=BH. BC b, góc BEH bằng góc C c. góc BAH=góc BEH

1foot = 12 inches; 1 yard = 3 feet

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.