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kobenichan
 one year ago
Fan and Medal! :)
Sandra is riding the Ferris wheel, and her height can be modeled by the equation H(t) = 25 cos[(pi/14)t] + 31, where H represents the height of the person above the ground in feet at t seconds.
How far above the ground is Sandra before the ride begins?
kobenichan
 one year ago
Fan and Medal! :) Sandra is riding the Ferris wheel, and her height can be modeled by the equation H(t) = 25 cos[(pi/14)t] + 31, where H represents the height of the person above the ground in feet at t seconds. How far above the ground is Sandra before the ride begins?

This Question is Closed

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0I thought that I would be substituting t for 0, and then solving, but I got stuck >_< Right now I have 25 cos(0) + 31

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0@ganeshie8 @Tootles143 @pooja195 Please can someone help me? :(

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0@77777jeannie77777 @cupcakerain @Gokuporter @Awolflover1

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0@amilapsn @Omar_Elboredy

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cos(0) = 1 so assign it and you have the height

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So .. What before the ride begins mean ? It means that just starting the ride which implies that it is wanted to get the height at time(t) = 0 then substituting back into the equation with this time you will get : H(0) = 25 cos( (π/14)*0 ) + 31 = 25 cos(0) + 32 = ? Solve it Urself ! :D Let me know if you got it :)

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0I got 25 32. But I don't know what to do about the space :/

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Your equation after subs. by t = 0 will be sth like that : 25 cos(0) + 31 = .... Ok ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It's 31 not 32 , I recorrected it ! :D

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Wait so do I add them to get the height or do I leave it as an equation??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You have to add them to get the height

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah t=0 H(0) = 25+32 = 57 which is the height at t=0

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Ok thank you guys :) And since it doesn't give a unit of measure, I just say 57 units, right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0"H represents the height of the person above the ground in ""feet"" " The given unit is "feet" ! :) So the answer will be : 57 feet above the ground

kobenichan
 one year ago
Best ResponseYou've already chosen the best response.0Oh I can't believe I missed that >_< thanks again!
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