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Mathematics 9 Online
OpenStudy (anonymous):

Please help!!!!! The figure shows a right triangle. What is r ÷ q equal to? sin x° cos y° cos x° tan y°

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

check out this page http://www.mathwords.com/s/sohcahtoa.htm

OpenStudy (anonymous):

@jim_thompson5910 A?? :)

jimthompson5910 (jim_thompson5910):

look at angle x, what is opposite of it?

OpenStudy (anonymous):

Y @jim_thompson5910

jimthompson5910 (jim_thompson5910):

which side is opposite angle x

OpenStudy (anonymous):

tan Y is the right answer @jim_thompson5910

jimthompson5910 (jim_thompson5910):

don't worry about the answer, what side is opposite angle x?

OpenStudy (anonymous):

side P

jimthompson5910 (jim_thompson5910):

what is the hypotenuse

OpenStudy (anonymous):

Q

jimthompson5910 (jim_thompson5910):

what is sine (use the link I gave you)

jimthompson5910 (jim_thompson5910):

specifically what is sin(x)

OpenStudy (anonymous):

ohhh ok sine is opposite/hypotenuse

jimthompson5910 (jim_thompson5910):

yes

jimthompson5910 (jim_thompson5910):

so because the opposite of angle x is p and the hypotenuse is q this means sin(x) = p/q

jimthompson5910 (jim_thompson5910):

but we want r/q, so sin(x) can't be the answer

OpenStudy (anonymous):

cosineX because opposite of x is R and adjacent of x is Q :)

jimthompson5910 (jim_thompson5910):

cos isn't opp/hyp though

jimthompson5910 (jim_thompson5910):

I think you meant to say adjacent is r

OpenStudy (anonymous):

aaahh oopp my bad

jimthompson5910 (jim_thompson5910):

cosine is what?

jimthompson5910 (jim_thompson5910):

use the link again

OpenStudy (anonymous):

yea im sorry ok i will give me a sec to clearly look at it

jimthompson5910 (jim_thompson5910):

its ok

OpenStudy (anonymous):

ok lol so adjacent/hypotenuse is what i meant to say because that's cosine so Cos x

jimthompson5910 (jim_thompson5910):

good, cos = adj/hyp

jimthompson5910 (jim_thompson5910):

so what is cos(x)

OpenStudy (anonymous):

wow that was a really easy problem but i was making stupid mistakes but thanks

jimthompson5910 (jim_thompson5910):

that's ok

OpenStudy (anonymous):

cos(x) is adjacent/hypotenuse

jimthompson5910 (jim_thompson5910):

what's the adjacent side to angle x

OpenStudy (anonymous):

r

jimthompson5910 (jim_thompson5910):

what's the hypotenuse

OpenStudy (anonymous):

Q

OpenStudy (anonymous):

@brianjr227 gave you a medal for knowing The Walking Dead

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