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Mathematics 15 Online
OpenStudy (anonymous):

Two birds sit at the top of two different trees 17.8 feet away from one another. The distance between the first bird and a bird watcher on the ground is 37.4 feet.

OpenStudy (anonymous):

What is the angle measure, or angle of depression, between this bird and the bird watcher? Answer Choices: 25.5° 64.5° 28.4° 61.6°

OpenStudy (anonymous):

OpenStudy (anonymous):

im thinking its either 28.4 or 61.6

OpenStudy (anonymous):

what do you think @qweqwe123123123123111 ?

OpenStudy (anonymous):

cos(x) = adj/hyp x = arccos(cos(x))

OpenStudy (anonymous):

@qweqwe123123123123111 is it 28.4 or 61.6?

OpenStudy (anonymous):

Heheh... Hint: It's not 28.4 :-)

OpenStudy (anonymous):

so 61.6?(:

OpenStudy (anonymous):

I got 61.58, so to 1 place, that's 61.6

OpenStudy (anonymous):

@qweqwe123123123123111 yay! haha thanks.

OpenStudy (anonymous):

can you help with a couple more?

OpenStudy (anonymous):

One more...Nova is on. It looks like it;s about that Russian meteor. I wanna see it. :-)

OpenStudy (anonymous):

Yup. Russian meteor... :-)

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