Solve the problem.
-$\mathrm { A } ( \mathrm { x } ) = - 0.015 \mathrm { x } ^ { 3 } + 1.05 \mathrm { x }$ gives the alcohol level in an average person's blood $x$ hrs after drinking 8 oz of 100 -proof whiskey. If the level exceeds $1.5$ units, a person is legally drunk. Would a person be drunk after 5 hours?
A) No
B) Yes

Question

Quizplus · Accepted Answer

The alcohol level after 5 hours is $$A(5) = -0.015(5)^3 + 1.05(5) = 1.65$$Since this exceeds 1.5 units, the person would be legally drunk.

Solve the Problem A(x)=−0.015x3+1.05x\mathrm { A } ( \mathrm { x } ) = - 0.015 \mathrm { x } ^ { 3 } + 1.05 \mathrm { x }A(x)=−0.015x3+1.05x

Solve the Problem $\mathrm { A } ( \mathrm { x } ) = - 0.015 \mathrm { x } ^ { 3 } + 1.05 \mathrm { x }$