SAT Math Practice Question #2293 (Medium) | Test Citadel
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SAT Math Difficulty: Medium

Digital SAT Math Practice Question #2293

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A sample of iodine-131 decays according to $A(t) = 160e^{-0.0866t}$, where $t$ is in days. What was the initial mass?
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The initial mass is found when $t = 0$: $A(0) = 160e^0 = 160$....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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