Astudent was asked to use the formula for the perimeter of a rectangle, p = 2ℓ + 2w, to solve for ℓ. the student came up with an answer, p − 2w = 2ℓ. what error did the student make? complete the explanation. then solve for ℓ.

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.)

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Indicate the formula for the following conditions: p^c(n,r)=