Which set of ordered pairs does not represent a function? o{(-1,-9), (5,5),(-1,-6), (4,4)}
o {(8, –7),(-6,-9), (4,6), (7,-9)}
o {(5,7), (-4,1),(0,4), (-9,6)}
o{(-5,1), (8,0), (0,7), (5,7)}

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

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.)

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3