The average blood alcohol concentration (bac) of eight male subjects was measured after consumption of 15 ml of ethanol (corresponding to one alcoholic drink). the resulting data were modeled by the concentration function c(t) = 0.0225te−0.0467t

The answer is 0.01365.

Explanation:

C(t) = 0.0225te^?0.0467t

We can derivate,

C'(t) = d/dt ( 0.0225 te^-0.0467t)

after solving,

C'(t) = 0.0225 (e^-0.0467t  - (0.0467e^-0.0467t . t)

Plug in t =5,

Answer is C'(t) = 0.01365.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

the answer is barium and copper bromide