1. what is the vertex of y-3=-(x+2)^2 a. (3,-2) b. (2,-3) c. (-2,3) d. (-3,2) 2. what are the x-intercepts for the graph of y=3(x-2)(x+6)? a) (-2,0) and (6,0) b) (0,-1) and (0,6) c) (0,1) and (0,-6) d) (2,0) and (-6,0) 3. what is the vertex of the graph of this function ? y=-(x-1)(x+3) a. (-1,4) b. (2,5) c. (1,-3) d. (-2,-3) 4. the point (1,0) lies on the graph of the function y=2x^2-x-6. true false

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

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.)

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.