Solve the problem.
-The amount of particulate matter left in solution during a filtering process decreases by the equation $$P = 900 ( 2 ) ^ { - 0.8 n }$$ where n is the number of filtering steps. Find the amounts left for n = 0 and n = 5. (Round to the nearest whole number.)
A) 1800, 56
B) 900, 14,400
C) 900, 28
D) 900, 56

Question

Quizplus · Accepted Answer

For n = 0, $P = 900(2)^{-0.8(0)} = 900(1) = 900$. For n = 5, $P = 900(2)^{-0.8(5)} \approx 900(0.0625) \approx 56$.

Solve the Problem P=900(2)−0.8nP = 900 ( 2 ) ^ { - 0.8 n }P=900(2)−0.8n

Solve the Problem $P = 900 ( 2 ) ^ { - 0.8 n }$