Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
@mayankdevnani
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
@badreferences
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Do you know the trigonometric identities? Sin and cosine?
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
cosine =adjustment/hypotenuse right
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
dw:1349573615545:dw
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
cos 50=x/90
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Not so fast. So we know that \(a=50\) degrees. \(\cos a=\frac BC\). \(C\) we know is \(90\). So yes, to solve for B, you would use \(B=90\cos a\).
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
cost 50=confused
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
cos 50=x/90
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Yes. Multiply both sides by \(90\).
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
you multiply 50x90 right
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
No, you multiply 90 by cos 50.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
50x90=4,500
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i got 4,500
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
\[90\cdot\cos50\neq90\cdot50\]
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i got 86.87
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
That sounds off.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
im not sure
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Do you know how to do \(90\times\cos50\)?
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
cosx50 right
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
No, \(\cos\) is an operation.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
im getting 4,500 for some reason
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Alright, do you know what an operation is? \(\sin x\) and \(\cos x\) are like machines into which you put a number \(x\) and retrieve a value. So do \(\cos50\) first.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
im getting 50
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i did cos 50
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
if i do 50 cos=0.9649
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
\(50\cos\neq\cos50\).
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
It's not a multiplication.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
im getting 50
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i click on cos and than i put 50 so i got 50
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
I have no idea what you're talking about. You sound confused. Do you know what \(\sin x\) is?
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
yes on calculator
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
No, even more importantly, \(\sin x\) is an operation performed on \(x\). You're used to operations like \(+,,\times,\div\), but \(\sin x\) is an operation like that. You can't just move the \(\sin\) around.
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
@swissgirl @bahrom7893 I can't tell what the confusion here is. Help me!
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
@nincompoop You are a better teacher.
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
Ok well on your calculator you should have this button called sin, cos and tan correct?
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
allrrighhttyy so on your calculator type 90*Cos(50) then press enter
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
ohhhh u r on radians. You gotta set your calculator to degrees
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
oh that's the problem
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i dont know why im getting 4,500
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
what i did is 90xcos50
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
you don't multiply when its cos(50) right
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
90*50=4500 But we are typing 90*Cos(50) remember to include the Cos
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
ok i was using my iphone calculator that's why it wasnt working now im using internet cal and i got57.85
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
Correct:)
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
so what's next
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
idk ask bad
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Ask @nincompoop ... I have a terrible headache.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
The cosine of a 50° angle is ____
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
@lgbasallote YOU.
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
The second most powerful. Most powerful is undoubtedly CleverBot. :P
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Unfortunately, CleverBot is not programmed to give you right answers. Just data mine a lot.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
ok who i should ask for help
 2 years ago

badreferences Group TitleBest ResponseYou've already chosen the best response.1
Ugh, I don't know how to help because it seems you aren't clear about what you're confused on.
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
i wasnt using the right calculator
 2 years ago

Claire4christ Group TitleBest ResponseYou've already chosen the best response.1
now i got it
 2 years ago
See more questions >>>
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.