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Mathematics 19 Online
Joe348:

Westfalls is 7 miles south of Edenville and Concord is 13 miles west of Westfalls. What is the distance from Edenville to Concord? Round to the nearest tenth of a mile.

kittybasil:

...tenth? I don't see any decimals

kittybasil:

OH WAIT. Vectors, right

Joe348:

Um I believe so

kittybasil:

Okay so basically this is what you should start out with for your diagram|dw:1620304162484:dw|

kittybasil:

pardon my bad mouse drawing anyway now we add the distances|dw:1620304241289:dw|let's have ?=\(x\)

Joe348:

woah woah too fast

kittybasil:

E = Edenville W = Westfalls C = Concord

Joe348:

okay

Joe348:

7^2+13^2 right

kittybasil:

Yep 😀

kittybasil:

But don't forget the square root at the end!

Joe348:

right right thank you

Joe348:

14.76 but round up

kittybasil:

Here's a rundown just to double check\[x=\sqrt{7^2+13^2}=\sqrt{49+169}=\sqrt{218}=?\]

Joe348:

^^

kittybasil:

CORRECT 🎉

1 attachment
Joe348:

yay e,e

Joe348:

thanks... you?

kittybasil:

Yes 😉

Joe348:

lol i was asking ur name

kittybasil:

oh, I go by Kitt. Sorry about that! Cheers, • Kitt

Joe348:

Okay cool and np

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