The percentage of alcohol in a person's bloodstream t hr after drinking 8 fluid oz of whiskey is given by
a(t) = 0.23te−0.4t (0 ≤ t ≤ 12).†

(a) what is the percentage of alcohol in a person's bloodstream after 12 hr? (round your answers to three decimal places.)

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

How can i find quotient 6/7 divided by 1/2

Which is true about the solution to the system of inequalities shown? y > 3x + 1 y < 3x – 3 only values that satisfy y > 3x + 1 are solutions. only values that satisfy y < 3x – 3 are solutions. values that satisfy either y > 3x + 1 or y < 3x – 3 are solutions. there are no solutions.