Soon after taking an aspirin, a patient has absorbed 280 mg of the drug. after 2 hours, only 70 mg remain. find an exponential model for the amount of aspirin in the bloodstream after t hours. hint [see example 2.]
f(t)=
use your model to find the amount of aspirin in the bloodstream after 4 hours.
f(t)= .

Which statement describes the term economics? a. it is the study of using limited resources to fulfill wants and needs. b. it is the study of how governments fulfill the wants and needs of nations. c. it is the study of how people spend their money to fulfill wants and needs.

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Find the area of an equilateral triangle with a side of 6 inches