Math 3 Quiz
20 questions · no time limit
0:00
MODELING & APPLICATIONS
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
PASSAGE
An environmental scientist models the concentration of a pollutant in a lake using C(t) = 100e−0.1t100e^{-0.1t}, where C is concentration in parts per million (ppm) and t is time in days after cleanup begins. The lake is considered safe when concentration drops below 10 ppm.
How should the scientist communicate when the lake will be safe for recreation?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end