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sebastiangonzagonza
 one year ago
HI PLEASE SOMEONE HELP ME WITH SOME QUESTIONS FOR GEOMETRY
sebastiangonzagonza
 one year ago
HI PLEASE SOMEONE HELP ME WITH SOME QUESTIONS FOR GEOMETRY

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sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1@poopsiedoodle Can you please help me?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Here's a suggestion. Post one of the questions, and maybe someone will help you.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1can you help me with a couple please?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Once again, post a question.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1A shooting star forms a right triangle with the Earth and the Sun, as shown below: A 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 Earth and the shooting star.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Do you have the figure?

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1sorry, i was taking the screenshot of it

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No problem. I assume you are learning trigonometry of right triangles.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1yes. its one of the chapters in my online geometry course

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1okay. thank you so much. I really appreciate this

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In your figure, you see you have a right triangle with right angle B. The hypotenuse is AC, and that is the distance you want to find. Also, you know angle x, and you know y.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In this triangle, the hypotenuse is AC. We already know that. We want to find this length. There are 2 legs in a right triangle. In our right triangle the legs are BC with known length y, and AB, whose length we don't know but are also not interested in.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1thats correct. we only need BC

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In a right triangle, to distinguish between the two legs, we call them the adjacent leg and the opposite leg. These terms for the legs are with reference to an acute angle of the right triangle. The angle we are using is angle C since we know its measure is x.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so would be using SOH CAH TOA?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Exactly. For angle C, is BC adjacent or opposite?

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1I would say adjacent

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. We are only interested in three things in this triangle. Known angle C (measuring x) Known adjacent leg BC (measuring y) Unknown hypotenuse AC

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Using SOH CAH TOA, which one of the trig functions sine, cosine, tangent, relates the adjacent leg to the hypotenuse?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. CAH : cos A = adj/hyp

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We can write an equation using the cosine equation and our known and unknown info. \(\cos \theta = \dfrac{adj}{hyp} \) \(\cos C = \dfrac{BC}{AC} \) \(\cos x = \dfrac{y}{AC} \) Since x is known, cos x is also known. y is known, so the only unknown is AC, which can be solved for. \(AC = \dfrac{y}{\cos x} \)

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so how would i put this in a essay form? this is what i have so far: To measure the distance between the the Earth and the shooting star, the scientist would be using SOH CAH TOA. For this particular question, they would be using CAH or cosine. cos A = adjacent/hypotenuse.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Very good so far.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Wait. I read the problem wrong.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1I'm really sorry, but let's look at it again.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1So should i write about the equations? like these: cosθ=adj/hyp cosC=BC/AC cosx=y/AC

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so we need to completely restart??

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The distance the problem is asking for is the distance between the shooting start and the Earth. We need to find AB, not AC.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1It's still a SOH CAH TOA problem only a different one.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1would they still be using cosine or would they go to tnagent?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Wow, I see that you're smart. We will be using the tangent. We have x, the angle measure, and we have y, the adjacent side. The unknown is AB. AB is the opposite leg. The function that relates the opposite and adjacent legs is the tangent. TOA: tan A = opp/adj

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(\tan x = \dfrac{opp}{adj} \) \(\tan x = \dfrac{AB}{y} \)

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1lol i try. but when i do it alone, i usually dont do too well.. so im just trying to finish out the course right now. at 12am. on my bedroom floor

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we solve for AB, the distance between the shooting star and the Earth.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1\(AB = y \tan x\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Since I started you off incorrectly, I did the following to make it up to you. I fixed your beginning of the answer. To calculate the distance between the the Earth and the shooting star, the scientist would be using SOH CAH TOA. For this particular question, he would be using TOA or tangent. tan A = opposite/adjacent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now you need to finish it.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so here is what i have now, after correcting it: To measure the distance between the the Earth and the shooting star, the scientist would be using SOH CAH TOA. For this particular question, they would be using TOA or tangent. The equation would be opposite/adjacent so y/AB Now, you would solve for AB AB=y tan x

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You have to be careful with which side is opposite and which side is adjacent.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so would the adjacent be C?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1To calculate the distance between the the Earth and the shooting star, the scientist would be using SOH CAH TOA. For this particular question, they would be using TOA or tangent. The equation would be opposite/adjacent so tan x = AB/y Now, you would solve for AB AB=y tan x

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Also, change "measure" to "calculate" The scientist is calculating the distance based on some measurements. He is not measuring the distance.

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1alright. i changed it

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1439784419738:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Great, you got it!

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1so is that all? is that everything i was supposed to write?

sebastiangonzagonza
 one year ago
Best ResponseYou've already chosen the best response.1@mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Yes. It looks good to me. You've explained how to calculate the distance from the shooting start to Earth.
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