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anonymous
 4 years ago
Math question help please !
anonymous
 4 years ago
Math question help please !

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what is the question?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.03 CD is a water pipeline. A and B are two towns. A pumping station is to be located on the pipeline to pump water to A and B. Each town is to pay for their own service pipes and insist on equality of costs. a Where should C be located for equality of costs to occur? b What is the total length of service pipe re quired? c If the towns agree to pay equal amounts, would it be cheaper to install the service pipeline from D to B to A?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0using the graph from this website http://www.haesemathematics.com.au/samples/sa11gt5_02.pdf

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327729372654:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Is anybody answering this?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0not me i forgot how 2, same question i had last year =P all urs

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i found A but im confused on parts B and C

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0wait, are you doing the IB?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0haha, yeah, I'm using the same textbook. Ill post the answers in a few minutes. I'm writing it out.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok so is the first one 7/3?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0do you know how to do that?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0for the second part i got confused on what is the total distance

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i used the distance formula for both AC & BC made them equal eachother

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0What do they give for an answer??

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and for C yes (6.16 km)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0part b is 8.03(i got 8.027 lol)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but how did you get B?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0all you need to do is take one set of the coordinates like (2,3) and use the coordinate of the pipeline and put them into the distance formula. (7/3, 7) You get around 4.0138646..... multiply that by two as there are two service pipes, one for B and one for A and you get 8.027 or 8.03 as they say

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so get the distance between the two points and times it by 2?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes...getting the distance for one only gives you the cost for one service pipeline. That only gives water to either A or B. Both need it right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and the second one is 6.16 and yes. the distance from B to D is 3(just subtract the yvalues) the distance from B to A is 3.16(distance formula should give you sqrt 10 which is 3.16 in decimal) add them together and you get 6.16 which is a shorter distance then 8.03 so it would be cheaper.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can you do 3b because i got 8.11

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0nevermind i did it the wrong way !

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but im kindda lost on 3C

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok...so what do you need to get in 3C? the distance from D to B to A right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so i need to find D for 3c

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0for finding D what points do i use? A and B right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0noooo, no, why would you need to? the right angle sign indicates that it is a straight line going down.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ohhh so if i find d to b i can get b to a

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327731671265:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can you help me with with the next question?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the one where it says "jason's girlfriend lives in a house on China..."

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0wait, is it possible for you to write or screen shot the question because my preview just froze from all the pdfs :S sryy

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Jason's girlfriend lives in a house on Clifton Highway which has equation y = 8. The distance from Jason's house is 11.73 km. If Jason lives at J(4,1), what are the coordinates of his girlfriend's house? y=8 o… < Clifton Highway K(a,8)  let x = a Distance JK = 11.73 km = 11.73 units o J(4,1) Scale: 1 unit = 1 km Okay legend: o (small o) represents a point. Point K is imaginary (I placed it there for visual reference i.e. lets pretend that its there, you are trying to find the x value. Point K is the location of Jason's girlfriend's house. And the distance between their houses is 11.73

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok, what's the answer it gives?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah i got the probblem !

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0??you got how to do it?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0all right :) good job XD
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