Solve the Problem $\mathrm { A } = \mathrm { A } _ { \mathrm { O } } \mathrm { e } ^ { - 0.0099 \mathrm { x } }$

question 391

Multiple Choice

Solve the problem.
-The functio $\mathrm { A } = \mathrm { A } _ { \mathrm { O } } \mathrm { e } ^ { - 0.0099 \mathrm { x } }$ models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 500 pounds of the
Material are initially put into the vault, how many pounds will be left after 80 years?

• A) 286 pounds
• B) 273 pounds
• C) 226 pounds
• D) 219 pounds

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Definitions:

Inferior Vena Cava

A large vein that carries deoxygenated blood from the lower and middle parts of the body to the right atrium of the heart.

Upper Limbs

Refers to the arms, from the shoulders to the hands, inclusive of all the bones, muscles, and joints in between.

Ductus Arteriosus

A fetal blood vessel that connects the pulmonary artery to the descending aorta, allowing most blood to bypass the fetus's developing lungs.

Fetal Pulmonary Trunk

A major vessel in the developing fetus that carries blood from the heart to the lungs for oxygenation.