IB MAI HL Functions Topic 2.2 Applications of Functions (id: 5d950e2ad)

本题目来源于试卷: IB MAI HL Functions Topic 2.2 Applications of Functions，类别为 IB数学

[填空题]
A population of goldfish decreases exponentially. The size of the populaj-9q, tfcfd;d4r (8 ygnvj *0om hsx3utiond0ukjp d+wf1tdx7 , 2m, P, after t days is modelled by the ddw tudkf7jm+p0 x12,function
P(t)=8000$\times2^{-t}$+100,t≥0.​1.Write down the exact size of the initial population. P =   
2.Find the size of the population after 5 days. P =   
3.Calculate the time it will take for the size of the population to decrease to 120.
The population will stabilize when it reaches a size of n. t =    days
4.Write down the value of n. n =   

参考答案:
空格1: 8100±2%  空格2: 350±2%  空格3: 8.64±2%  空格4: 100±2% 


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