4. Solve: x2 + 6x + 9 = 1 x= -4 and x = -2
O
x = 4 and x = 2
О
x = -4 and x = 2
o
x = 4 and x = -2

The system of equations graphed below has how many solutions?

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

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.)