IB MAI HL Functions Topic 2.2 Applications of Functions (id: 2b8cee8a6)

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]
The amount of water, mmkn +m/ketg9j+gg716r ln 8j W, in litres,j;sg;+gotz y. 9 5emva remaining in a cooking pot after it is placed onto a hot stove is given by the function5 a9y;ez.smv+ogjtg ;
W(t)=40$(0.75)^t$,t≥0
where t is the time in hours after the pot is placed on the stove.
1.Find
(1)the initial amount of water in the pot. W =    litres
(2)the percentage of water that leaves the pot in the form of steam each hour. W =    litres
2.Calculate the amount of water remaining in the pot after 55 hours. W =    litres

参考答案:
空格1: 40±2%  空格2: 30±2%  空格3: 9.49±2% 


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