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Olin [163]
3 years ago
5

Marcos drops a bouncy ball from a hieght of 40 feet. The ball loses 10% of its maximum height on each bounce. How high will it b

ounce after 9 bounces?
Mathematics
1 answer:
iren [92.7K]3 years ago
4 0
I think after the 9th bounce it will lose 90% of its max height 

times 40 by 0.9 which will give you 36 
then take 36 away from 40 leaving you with 4. 


answer = 4ft 
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Let us find the length of rope Jules will need using the pythagoras theorem .

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Then the length of rope needed ( hypotenuse ) =

= Let us name the triangle that is formed as △ ABC . Then ;

In △ ABC :

AB = the width of moat ( leg of triangle ) = 14 foot

BC = The distance from the window to the moat ( base ) = 20 feet

AC = Length of rope needed ( hypotenuse ) =

= AB ² + BC² = AC² ( according to the pythagoras theorem the square on the hypotenuse will be equal to the sum of the squares on the other two legs )

= 14² + 20² = AC²

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= 596 = AC²

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= 24 foot = AC = length of rope needed by jules .

Therefore , Jules will need a 24 foot rope so that his girlfriend can slide down and escape from her apartment .

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