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zapatamylene24
27.03.2020 •
Mathematics
A child on a swing is pushed just once. The child moves a distance of 10
feet the first swing, and then only 83%
as much as the previous swing for each one after.
Which of the following sequences expresses the distance the child travels n
swings after the first?
A
an=10(0.83)n
B
an=(10.83)n
C
an=(10.83)n
D
an=10(0.83)n
Solved
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Ответ:
the distance the child travels n swings after the first is
. Options A) and D) are identical , so kindly match
with your answer !
Step-by-step explanation:
Here we have , A child on a swing is pushed just once. The child moves a distance of 10 feet the first swing, and then only 83% as much as the previous swing for each one after. We need to find Which of the following sequences expresses the distance the child travels n swings after the first . Let's find out:
Initially the distance is 10 feet from after the first swing . It's given that there is 83% as much as previous distance !
For first swing :
⇒![Distance = S_0 =10(0.83)](/tpl/images/0567/4548/7646e.png)
For second swing :
⇒![Distance = S_1 =10(0.83)^2](/tpl/images/0567/4548/261cd.png)
For third swing :
⇒![Distance = S_2 =(10(0.83^2))(0.83) = (S_1)0.83](/tpl/images/0567/4548/66525.png)
⇒![Distance = S_2 =10(0.83)^2](/tpl/images/0567/4548/60549.png)
So , For n swings :
⇒![Distance = 10(0.83)^n](/tpl/images/0567/4548/fe34c.png)
Therefore , the distance the child travels n swings after the first is
.
Ответ:
So, 39%->.39