IB MAI HL Functions Topic 2.2 Applications of Functions (id: 596163c10)

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]
An ice cube was dropped) wa0ujktk1xt:e *;k ns9wijhv)k ka*b +3rp5 into a cup of warm water. The weight of the ice cube, W, in grams, reduces as the ice cube dissolves in the water. The weight can be modelled by the following functionv*59w3hiak pk +j)bs r, W(t), where t is the time in seconds after the dissolving starts.
W(t)=28$(0.98)^t$,t≥0
1.Find
(1)the initial weight of the ice cube. W =    g
(2)the percentage of the ice cube dissolving every 55 seconds.    %
2.Calculate the weight of the ice cube remaining after one minute. W =    g

参考答案:
空格1: 28±2%  空格2: 9.64±2%  空格3: 8.33±2% 


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