Which represents the sample space of flipping a coin two times? What would be the probability of getting 2 heads?

A) HT, TH : 1/2
B) HH, TT, HT, TH: 1/2
C) HH, HT, TT, TH: 1/4
D) HT, TH, TT, TH, HH: 1/5

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

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.)

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?