Name: SAT Math Help & School Math Mastery
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#36582

applications

exponential

medium

50 sec

A patient is given a 1200 mg dose of a medication. The amount of medication in the patient's bloodstream halves every 4 hours. Which equation represents the amount of medication $M (t)$ , in milligrams, $t$ hours after the initial dose?

A.

$M (t) = 1200 (2)^{\frac{t}{4}}$

B.

$M (t) = 1200 (\frac{1}{2})^{\frac{t}{4}}$

C.

$M (t) = 1200 (\frac{1}{4})^{\frac{t}{2}}$

D.

$M (t) = 1200 (4)^{\frac{t}{2}}$