The oxygen content t days after organic waste has been dumped into a pond is given by the following function where f(t) is the percent of its normal level. f(t) = 100 t2 + 10t + 100 t2 + 20t + 100 , 0 ≤ t ≤ 10 (a) Compute the following values. f(0)= f(10)= (b) How many days will it take for the oxygen content to reach the 85% level? Hint: Use the quadratic formula. (Round your answer to one decimal place.)
The oxygen content t days after organic waste has been dumped into a pond is given by the following function where f(t) is the percent of its normal level. f(t) = 100 t2 + 10t + 100 t2 + 20t + 100 , 0 ≤ t ≤ 10 (a) Compute the following values. f(0)= f(10)= (b) How many days will it take for the oxygen content to reach the 85% level? Hint: Use the quadratic formula. (Round your answer to one decimal place.)
Chapter3: Functions
Section: Chapter Questions
Problem 30RE: For the following exercises, use the graphs to determine the intervals on which the functions are...
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The oxygen content t days after organic waste has been dumped into a pond is given by the following function where f(t) is the percent of its normal level.
f(t) = 100
, 0 ≤ t ≤ 10
t2 + 10t + 100 |
t2 + 20t + 100 |
(a)
Compute the following values.
f(0)= f(10)=
(b)
How many days will it take for the oxygen content to reach the 85% level? Hint: Use the quadratic formula. (Round your answer to one decimal place.)
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