IB MAI HL Calculus Topic 5.2 Integration (id: cab6ba48e)

本题目来源于试卷: IB MAI HL Calculus Topic 5.2 Integration，类别为 IB数学

[填空题]
A fire truck is pumping water at a ratxeli41yz, 3k mp9khk(wp+qy *e of+a lq43 y,ecuf r=$\frac{2t^2}{35}$ where r is in litres per second and is the time measured in seconds.
The graph of r is shown below.

1. Write down an integral that represents the area of the shaded region.
$A={\int }_x^y\frac{a{t}^2}{b}\mathrm{d}t$;a=  ,b=  ; x=  ,y=  .
2. 1. Find the area of the shaded region, rounding your answer to the nearest whole number.
2. Interpret the meaning of the shaded area in the context of this question.
3. Calculate the number of seconds it takes for the fire truck to pump $1000\mathrm{L}$ of water.
s≈   s (one decimal plaeaces)

参考答案:
空格1: 2  空格2: 35  空格3: 0  空格4: 120  空格5: 37.4±0.1 


本题详细解析:

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