IB MAI HL Number and Algebra Topic 1.2 Sequences & Series (id: dbbcd3ff0)

本题目来源于试卷: IB MAI HL Number and Algebra Topic 1.2 Sequences & Series，类别为 IB数学

[填空题]
A tennis ball bounces on thkd6m3 bd( 4kos5vly4te n*p -vj ; kvaqx:in9.j1qa;b jwf0kx, ground n times. The heights of the bounces, ​$h_1,h_2,h_3,....,h_n$, form a geometric sequence. The height that the ball bounces the first time, $h_1$, is 80 cm, and the second time, $h_2$ , is 60 cm.

Find the value of the common ratio for the sequence.
r=  .
Find the height that the ball bounces the tenth time, $ℎ_10$​ .
$ℎ_10$​=  .
Find the total distance travelled by the ball during the first six bounces (up and down). Give your answer correct to 2 decimal places.
The number=  cm

参考答案:
空格1: 0.75  空格2: 6.01±1%  空格3: 526.09±1% 


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