Use a graphing calculator and the following scenario.The population P of a fish farm in t years is modeled by the equation P(t)=1+9e−0.6t1700.To the nearest tenth, how long will it take for the population to reach 900 ?□ yr
Q. Use a graphing calculator and the following scenario.The population P of a fish farm in t years is modeled by the equation P(t)=1+9e−0.6t1700.To the nearest tenth, how long will it take for the population to reach 900 ?□ yr
Identify Equation: Identify the equation that models the population of the fish farm over time.The given equation is P(t)=1+9e−0.6t1700, which is a logistic growth model.
Set Population to 900: Set the population P(t) to 900 to solve for the time t when the population will reach that number.So, we have 900=1+9e−0.6t1700.
Isolate Exponential Part: Isolate the exponential part of the equation by multiplying both sides by the denominator and then dividing by 900.(\(900)(1+9e−0.6t)=1700\)1+9e−0.6t=90017001+9e−0.6t=1.8889 (rounded to four decimal places for simplicity).
Subtract to Isolate: Subtract 1 from both sides to isolate the term with the exponential.9e−0.6t=0.8889
Divide to Solve: Divide both sides by 9 to solve for the exponential term.e(−0.6t)=90.8889e(−0.6t)=0.0988 (rounded to four decimal places for simplicity).
Take Natural Logarithm: Take the natural logarithm of both sides to solve for the exponent.−0.6t=ln(0.0988)
Divide to Solve for t: Divide both sides by −0.6 to solve for t.t=−0.6ln(0.0988)
Calculate Value of t: Use a calculator to find the value of t.t≈ln(0.0988)/(−0.6)t≈2.3148 (rounded to four decimal places for simplicity).
Round to Nearest Tenth: Round the answer to the nearest tenth as the question prompt asks for. t≈2.3 years
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