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anonymous
 one year ago
The moon forms a right triangle with the Earth and the Sun during one of its phases, as shown below:
anonymous
 one year ago
The moon forms a right triangle with the Earth and the Sun during one of its phases, as shown below:

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A scientist measures the angle x and the distance y between the Earth and the Sun. Using complete sentences, explain how the scientist can use only these two measurements to calculate the distance between the moon and the Sun.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is my answer so far: The scientist should use the cosine function (cos = adj/hyp) because we already know the adjacent, and the hypotenuse is what we need to find. If we use cosine, we can find the hypotenuse while working with the problem.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Am I taking the right approach by using cosine?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1yes cos x = y/distance Moon to Sun

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay thank you! But, should I write anything else in my answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\cos(x) = (\frac{ y }{ hypotenuse })\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And is this what you mean by "cos x = y/distance moon to sun"?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Just want to make sure I'm writing it correctly.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@triciaal are you there?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1yes and may want to include something about why this relationship right angle importance not sure how to word it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, but I'm not sure how to describe that. I just started doing trig. Can you give me a hint on what the relationship is?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1what I am getting at is why the cosine rule

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh, okay, but my class did not really teach me "rules" that relate to the trig functions. All they said was that cosine is the ratio of side adjacent the angle to the hypotenuse.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438189071435:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1never mind the draw then you were told what I was getting at

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh, okay. I'm such a confused person, lol. Thank you!

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1possible structured answer when we have a right angle triangle we know the cosine is ...... for this situation the cosine of the angle x is .......
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