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Type: Multiple-Choice
Category: Exponents
Level: Grade 11
Standards: HSF-LE.B.5
Tags: HSF-LE.B.5
Author: HTPhysics
Created: 2 weeks ago

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Grade 11 Exponents CCSS: HSF-LE.B.5

Fatima is studying a new antibiotic. She models the bacteria population with
[math]P(t) = 8000e^(-0.35t)[/math], where P is the number of bacteria after t hours. She discovers the antibiotic is less effective, meaning the bacteria die off more slowly. Which function fits her discovery?
  1. [math]P(t) = 8000e^(-0.29t)[/math]
  2. [math]P(t) = 8000e^(-0.40t)[/math]
  3. [math]P(t) = 7800e^(-0.35t)[/math]
  4. [math]P(t) = 8200e^(-0.40t)[/math]
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