The half-life of morphine in the human bloodstream is 3 hours. Initially there is 0.4 mg in the blood stream A) find an equation for the amount of morphine at any time K
B) how long until the amount in the bloodstream is 0.7mg

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

step-by-step explanation:

its 512 because parenthesis and to the 2nd power is 512 so it will be 512

answer is  

c.

36

step-by-step explanation: