Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (tootsi123):

Find y.

OpenStudy (tootsi123):

OpenStudy (anonymous):

6 or 10

OpenStudy (anonymous):

sin 30 = x / 15 find x = ?

OpenStudy (anonymous):

x = 0.5 * 15 = 7.5

OpenStudy (anonymous):

sin 60 = y / 7.5 y = sin 60 * 7.5 = 6.5

OpenStudy (tootsi123):

So how would I do this if I have to show it in a fraction with a square root?

OpenStudy (anonymous):

find z using pythagoras theorem z^2 = 15^2 - x^2 then find y using sin 30 = y / z y = z/2

OpenStudy (anonymous):

z = sqrt(168.75)

OpenStudy (tootsi123):

So wait what you're saying is that I need to solve for both y and z and then divide?

OpenStudy (anonymous):

yes, that's because u want to use a fraction and a sqrt there are several ways to solve this, not just one method, depends how u want to approach it

OpenStudy (anonymous):

makes sense?

OpenStudy (tootsi123):

Getting there.. so what method would you prefer or what method would be the best?

OpenStudy (anonymous):

if they ask you to give the answer as a fraction and SQRT then use a method similar to the above with SIN, COS or TAN and use Pythagoras theorem

OpenStudy (tootsi123):

Okay. so Z= 2^42 right

OpenStudy (anonymous):

dear algebra, your x is never coming back, and dont ask y

OpenStudy (tootsi123):

what?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!