A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0sin for opposite over hypotenus cos for adjacent over hypotenus

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0I know but like in a problem...i dont get which one i should use

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0Use a sine or cosine ration to find the value of each variable. Round decimals to the nearest tenth.

IsTim
 2 years ago
Best ResponseYou've already chosen the best response.0use that. sorry. i ahve to go soon.

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0it doesnt help please solve these for me

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1358230939592:dw Refer to the reference angle. Sin => opposite side (to the reference angle) / hypotenuse In this diagram, can you determine what sine theta is?

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1what is the opposite side to the reference angle theta?

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1and what is the hypotenuse?

Callisto
 2 years ago
Best ResponseYou've already chosen the best response.1Sorry : that was supposed to be z : If you know x and z, you can find theta. Because sin (theta) = x/z Got it?

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1Ammara, so in an equation, Callisto is saying is that in the figure above, \[\sin(\theta) = \frac{ x }{ z }\] So, in your figure, the first problem: you know the hypotenuse (18) and the angle opposite x (32 degrees). So you know that, \[\sin(32) = \frac{ x }{ 18 }\] Then solve for x :)

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1And that's the sine of 32 degrees of course, not radians.

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0what do i do for why then?

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1Well, you know that the angle opposite x is 32 degrees, and that the angle opposite the hypotentuse is 90 degrees. You also know the total sum of all interior angles of a triangle  so from that you can figure out the remaining angle you don't know, and do the same thing.

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0i dont get it....how to i solve for y?

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1Or alternatively, use the cosine which is the adjacent angle over the hypotenuse: \[\cos(\theta) = \frac{ y }{ z }\] Substitute for the adjacent angle (32 degrees again) and for the hypotenuse (18), and solve for y the same way you solved for x above.

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0Ok how about the next triangle...

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0so in the left triangle were solving for a.

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0how would u solve it? please solve it for me.......

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1Correct. And you know that the cosine of the angle (48 degrees) is the same as 10 divided by a  careful here, because a is the hypotenuse: \[\cos(\Theta) = \frac{ 10 }{ a }\] So, \[\cos(48) = \frac{ 10 }{ a } \]

Ammarah
 2 years ago
Best ResponseYou've already chosen the best response.0how would i solve be now...i got 14.9 for a

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1That's correct. Now solve the last figure?

opiesche
 2 years ago
Best ResponseYou've already chosen the best response.1You got it. Can you do the last triangle?
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.