A community for students.
Here's the question you clicked on:
 0 viewing
Mirandaregina
 one year ago
(Answer choices below)
Given angle theta = 208 degrees and a right triangle inscribed within a circle of radius 5, what is the value of x of the corresponding coordinate?
A) 2.34
B) 4.41
C) 2.34
D) 4.41
Mirandaregina
 one year ago
(Answer choices below) Given angle theta = 208 degrees and a right triangle inscribed within a circle of radius 5, what is the value of x of the corresponding coordinate? A) 2.34 B) 4.41 C) 2.34 D) 4.41

This Question is Closed

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437747172162:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1cos 208 = cos 28 = x /5 x = 5 cos 28

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1take your calculator and work this out

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1do you understand this?

Mirandaregina
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella I do not

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1positive angles go counterclocwise so 208 degrees is the big arc

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437747608472:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1and the semicircle (between the 2 large dots) = 180 degrees so we have 28 degrees over OK?

Mirandaregina
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella that part makes sense, I'm just not sure what part I'm supposed to enter in my calculator

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1applying trigonometry to the small triangle cos 28 = adjacent / hypotenuse = x / 5 so x =  5 * cos 28 thats what you enter into your calculator: 5 times cos 28

Mirandaregina
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella I have 5 * cos(28) = 4.8130

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no thats not correct the x coordinate is negative and not as large as that

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1have you set ur calc to degrees?

Mirandaregina
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella you're right, it wasn't set to degrees. Now I have 5*cos(28) = 4.41

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you should get 4.41

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437748180441:dw

Mirandaregina
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella ok this is making sense to me now. Thank you for explaining this :)
Ask your own question
Sign UpFind 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.