kittiwitti1
  • kittiwitti1
Trig questions. The answer deadline is up so I cannot submit the answers anymore, but feel free to answer and help out if you can. A) The figure below is a simplified model of a Ferris wheel with diameter 230 feet. The top of the wheel is 240 feet above the ground. If θ is the central angle formed as a rider moves from position P0 to position P1, find the rider's height above the ground h when θ is 120°. Diagram: http://prntscr.com/8kn5ag B) Suppose each edge of the cube shown in the figure is 9.00 inches long. Find the measure of the angle formed by diagonals CF and CH. Round your answer to the nearest tenth of a degree. Diagram: http://prntscr.com/8lbcvd **Variable version: Suppose each edge of the cube shown in the figure is x inches long. Find the measure of the angle formed by diagonals DE and DG. Round your answer to the nearest tenth of a degree. Diagram http://prntscr.com/8lbe3e
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Hero
  • Hero
Okay give me some minutes to figure out the solution
kittiwitti1
  • kittiwitti1
Alright
kittiwitti1
  • kittiwitti1
There is an issue with showing how many users are actually viewing this question. Lol

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Hero
  • Hero
Almost finished
kittiwitti1
  • kittiwitti1
Gotcha
kittiwitti1
  • kittiwitti1
Take your time, I've got other problems to work on in the meantime :)
kittiwitti1
  • kittiwitti1
@Hero I may be able to solve question A. Are you okay with helping me solve the other two questions?
kittiwitti1
  • kittiwitti1
scratch that I got stuck
Hero
  • Hero
I thought I'd be able to solve this but I haven't worked with it in a While and It's very late here. I don't know why you wait until now to want to do this We and have done it at any point during the day.
kittiwitti1
  • kittiwitti1
I just woke up an hour ago. Lol
Hero
  • Hero
I'm going to post the solution but it will take a bit longer Just be patient please.
kittiwitti1
  • kittiwitti1
Okay
baru
  • baru
i think B can be answered using vectors...
kittiwitti1
  • kittiwitti1
The deadline for the question submission is up.
baru
  • baru
if u set it up so that the cube lies in the first octant with C at the origin, then CH = <9,9,0> and CF is <9,9,9>
baru
  • baru
oh
kittiwitti1
  • kittiwitti1
No, go ahead. I would still like to know the answer.
kittiwitti1
  • kittiwitti1
...except this class has not taught vectors yet. I do know vectors, but the class hasn't taught us vectors yet. At least I don't think they have... But you can proceed. I know vectors so I'll just use vectors :p
baru
  • baru
oh ok... then never mind. But the next step would be to use "dot product" in case you are curious. its a formula that allows us to find the angle between any two vectors. you will definitely come across it :)
kittiwitti1
  • kittiwitti1
No it's okay go ahead
kittiwitti1
  • kittiwitti1
I forgot how to dot-product actually... it's been two years ^^;
baru
  • baru
if you have two vectors A= and B= then the dot product of A and B is (a1b1+a2b2 + a3b3) OR (magnitude of A)(magnitude of B)( cosine of angle between them) so, \[81+81+0= \sqrt{9^2 +9^2 +0} \times \sqrt{9^2 +9^2 +9^2}\times \cos(\theta)\]
baru
  • baru
solve for theta 35.2 degrees
baru
  • baru
does it match with the answer you got?
kittiwitti1
  • kittiwitti1
Um... I was working on my psych homework lol I might have to go, so if you wanna do this tomorrow?
baru
  • baru
no prob
kittiwitti1
  • kittiwitti1
Thanks :D
Hero
  • Hero
I have the solution. I will post in five minutes Or less.
kittiwitti1
  • kittiwitti1
Hero, take your time. My answer submission form is already expired so I am fine with waiting however line for the solution. :]
Hero
  • Hero
Well, the solution is for part A that's all I have time for sorry.
kittiwitti1
  • kittiwitti1
however long* Okay that's fine you can do it later :]
FireKat97
  • FireKat97
You can do B without vectors quite simply as well, |dw:1444204348370:dw|
FireKat97
  • FireKat97
|dw:1444204444350:dw| so we can find CH using python, and its simply \[\sqrt{9^2 + 9^2}\] which simplifies to \[\sqrt{162}\]
FireKat97
  • FireKat97
|dw:1444204536394:dw| again using pythag \[\tanø = \frac{ 9 }{ √162 }\] therefore ø = 35.2 @kittiwitti1
FireKat97
  • FireKat97
Also, did you understand part A @kittiwitti1?
kittiwitti1
  • kittiwitti1
Sorry, what's up? Just logged on-

Looking for something else?

Not the answer you are looking for? Search for more explanations.