Question

A ball is dropped from the top of a 1,000 foot building. The height of the ball is half its original height after each bounce.

Part 1: What will the height of the ball be after 9 bounces?

Part 2: Using complete sentences, explain the procedure taken to answer this question.

Answer 1

almost same lol as last one.

Answer 2

I know but I can't plug everything in for some reason

Answer 3

just remember
ar^0 + ar^1 + ar^2 ...
0 1st 2nd ... bounce
^ here we start at 0 instead of 1 cuzz the ball hasn't bounced yet.
1000 +500+250 <- cuzz of the half with me so far?

Answer 4

69

Answer 5

tim086m your a virgin aren't you... lol

Answer 6

512000?

Answer 7

no i did it wrong let me recheck

Answer 8

okayy

Answer 9

the 9th bounce should be
ar^9

but before we deal with that lets look at what we do know
a=1000
ar^1=ar=500 So we plug in the a and solve for r
1000*r=500
r=500/1000 = 1/2 HERE WHERE I WENT WRONG LAST TIME
So we know
a=1000
r=1/2

so we get ar^9 and plug in

1000*.5^9= answer :)

Answer 10

1.953125 ?

Answer 11

last time i went
r=1000/500=2 :P lol it was reverse order.

and yes that looks right LB :)

Answer 12

@blow-some-smoke-420 how you get 69? are you sure? :(

Answer 13

thankyouuu(:

Answer 14

im think so why what did u get

Answer 15

1.953125

Answer 16

ohh well I think ur right