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kittiwitti1
 one year ago
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
kittiwitti1
 one year ago
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

This Question is Closed

Hero
 one year ago
Best ResponseYou've already chosen the best response.0Okay give me some minutes to figure out the solution

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0There is an issue with showing how many users are actually viewing this question. Lol

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0Take your time, I've got other problems to work on in the meantime :)

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0@Hero I may be able to solve question A. Are you okay with helping me solve the other two questions?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0scratch that I got stuck

Hero
 one year ago
Best ResponseYou've already chosen the best response.0I 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
 one year ago
Best ResponseYou've already chosen the best response.0I just woke up an hour ago. Lol

Hero
 one year ago
Best ResponseYou've already chosen the best response.0I'm going to post the solution but it will take a bit longer Just be patient please.

baru
 one year ago
Best ResponseYou've already chosen the best response.1i think B can be answered using vectors...

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0The deadline for the question submission is up.

baru
 one year ago
Best ResponseYou've already chosen the best response.1if 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>

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0No, go ahead. I would still like to know the answer.

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0...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
 one year ago
Best ResponseYou've already chosen the best response.1oh 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
 one year ago
Best ResponseYou've already chosen the best response.0No it's okay go ahead

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0I forgot how to dotproduct actually... it's been two years ^^;

baru
 one year ago
Best ResponseYou've already chosen the best response.1if you have two vectors A=<a1,a2,a3> and B=<b1,b2,b3> 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
 one year ago
Best ResponseYou've already chosen the best response.1solve for theta 35.2 degrees

baru
 one year ago
Best ResponseYou've already chosen the best response.1does it match with the answer you got?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0Um... I was working on my psych homework lol I might have to go, so if you wanna do this tomorrow?

Hero
 one year ago
Best ResponseYou've already chosen the best response.0I have the solution. I will post in five minutes Or less.

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0Hero, take your time. My answer submission form is already expired so I am fine with waiting however line for the solution. :]

Hero
 one year ago
Best ResponseYou've already chosen the best response.0Well, the solution is for part A that's all I have time for sorry.

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0however long* Okay that's fine you can do it later :]

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1You can do B without vectors quite simply as well, dw:1444204348370:dw

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444204444350:dw so we can find CH using python, and its simply \[\sqrt{9^2 + 9^2}\] which simplifies to \[\sqrt{162}\]

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444204536394:dw again using pythag \[\tanø = \frac{ 9 }{ √162 }\] therefore ø = 35.2 @kittiwitti1

FireKat97
 one year ago
Best ResponseYou've already chosen the best response.1Also, did you understand part A @kittiwitti1?

kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0Sorry, what's up? Just logged on
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