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Mathematics 7 Online
OpenStudy (anonymous):

An observer (O) is located 900 feet from a building (B). The observer notices a helicopter (H) flying at a 49° angle of elevation from his line of sight. What equation and trigonometric function can be used to solve for the height ( h) of the helicopter? Pick another trigonometric function and describe why that function is not appropriate when trying to solve for ( h). You must show all work and calculations.

OpenStudy (anonymous):

OpenStudy (anonymous):

@Directrix ?

OpenStudy (agent0smith):

You need to find the opposite side, and you're given the adjacent side. Which trig function is = opposite/adjacent?

OpenStudy (anonymous):

woukd you take me through it step by step?

OpenStudy (agent0smith):

Yes, first do you know which trig function is = opp/adj?

OpenStudy (agent0smith):

sine = opp/hyp cosine = adj/hyp tangent = opp/adj

OpenStudy (agent0smith):

...?

OpenStudy (anonymous):

what next

OpenStudy (agent0smith):

Well which one of those three do you need? It should be easy to tell now

OpenStudy (agent0smith):

sine, cosine or tangent...?

OpenStudy (anonymous):

Do you think you could tell me it step my step to the asnwer?

OpenStudy (agent0smith):

Yes, if you participate and try answering the question i just asked...

OpenStudy (anonymous):

idk

OpenStudy (agent0smith):

I gave you the answer above... you just needed to find it. You need to find the opposite side, and you're given the adjacent side. Which trig function is = opposite/adjacent? sine = opp/hyp cosine = adj/hyp tangent = opp/adj

OpenStudy (anonymous):

whats the answer?

OpenStudy (agent0smith):

one of those three...

OpenStudy (agent0smith):

Read the question i gave and the three answers carefully.

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