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Mathematics 18 Online
OpenStudy (anonymous):

What is the distance, CD, between the boats?

OpenStudy (anonymous):

OpenStudy (anonymous):

@apoorvk @jim_thompson5910

OpenStudy (anonymous):

Hint: SOH-CAH-TOA: SOH : \(sin \theta = \huge \frac{opposite}{hypotenuse} \) CAH : \(cos \theta = \huge \frac{adjacent}{hypotenuse} \) TOA : \(tan \theta = \huge \frac{opposite}{adjacent} \)

OpenStudy (anonymous):

is it 173.2?

OpenStudy (anonymous):

Hint 2: BD - BC = CD

OpenStudy (anonymous):

Hint 3: AB = opposite side = 200 ft

OpenStudy (anonymous):

is it 173.2 ?? thats what im getting. im asking if its correct

OpenStudy (anonymous):

@dpaInc

jimthompson5910 (jim_thompson5910):

173.2 is incorrect

OpenStudy (anonymous):

ok thanks! 284.3 is this it @jim_thompson5910 :)

OpenStudy (anonymous):

\[\sin \theta = \large \frac{opposite}{hypotenuse} = \frac{200 ft}{H ft} = \sin 30^o\]

OpenStudy (anonymous):

One way of going about it :-) (there's more than one correct method)

jimthompson5910 (jim_thompson5910):

Why use sine when you want the adjacent sides (and you're given the opposite side)? I'd go with tangent.

OpenStudy (anonymous):

*shrug* Or tangent is fine :D

jimthompson5910 (jim_thompson5910):

Then again, there is more than one way to do this.

jimthompson5910 (jim_thompson5910):

you're getting closer HELP001, but that's still not it

OpenStudy (anonymous):

230.9 ft @jim_thompson5910 this has to be it!

jimthompson5910 (jim_thompson5910):

you nailed it

OpenStudy (anonymous):

I got about the same answer going another way, so double correct. :D

OpenStudy (anonymous):

THANKS :P

OpenStudy (anonymous):

You all can type on calculators fast than I :P

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