20. a) Bismuth-214 has a half-life of approximately 20 minutes. Find the
amount of bismuth-214 left from a 30-
gram sample after 1 hour.
b) What does 40 represent in the
following half-life equation.
A = 40(0.5)

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

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.)