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anonymous
 one year ago
The image shows a portion of a bridge supported by vertical pillars from the slope below. What is the length of the bridge between pillar B and pillar C?
anonymous
 one year ago
The image shows a portion of a bridge supported by vertical pillars from the slope below. What is the length of the bridge between pillar B and pillar C?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use pythagoras theorem for this question, both of em are similar triangles

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I honestly do not know how to.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i cant really help you the image is really fuzzy

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and i dont run csi enhancer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know how to do the process you were talking about ? could you explain to me how to ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok lets start by finding this angledw:1438434416019:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.029 feet 48 feet 56 feet 60 feet those are my options btw. And alright.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\cos^{1} (\frac{ 40 }{ 50 }) is the \angle\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cos^1 (40/50) is the angle

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1438434482105:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay from a to b on the top is 40 feet, bottom is 50 feet. and b to c on bottom is 70 feet, does that help ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 50 }{ 120 } = \frac{ 40 }{ 40+x }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now you can solve for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can do that i hope

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got 80 .. i feel like im wrong ... I havent had a math class since my freshman year in high school, and this is my senior year, and i just honestly dont have any idea what im doing ... i feel really stupid right now.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lemme try solving\[\frac{ 50 }{ 120 } = \frac{ 40 }{ 40+x }\]\[50 = \frac{ 4800 }{ 40+x }\]\[50(40+x)=4800\]\[2000+50x=4800\]\[50x=2800\]\[x=56\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you ... But can i ask how you did that process ? if its too much to explain thats fine.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0alright you just cross multiple the denominator to each sides to cancel them out (the 1st 2 lines).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0cause fractions are messy. then you move the constant to one side of the equation (3rd line), by minusing the constant (2000) from both sides.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats how we end up with 50x=2800

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This whole thing confuses me. I literally feel dumb. I don't understand any of this.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which part you do not understand?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0All of it... I don't even have a teacher, like i have to teach myself all of this stuff. Im probably wasting your time honestly, I cant comprehend this kind of stuff.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok ill write it in simpler form

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You don't have to do that..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you gotta know how we come out with that first....

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0otherwise you will keep getting stuck

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I just dont want to waste your time. And i don't think ill ever understand this.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well just take it easy, 1 thing at a time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ill explain to you how the\[\frac{ 50 }{ 120 } = \frac{ 40 }{ 40+x }\] is made first

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the triangle in the diagram is a similar triangle, therefore they are proportional to each otherdw:1438436528358:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.050+70 is how we got the 120., and we take the ratio of the smaller triangle to the larger one

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea the fraction you saw 50/120 is the ratio

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now the other side of the triangle is 40 on small side and 40+x on larger side

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0they have to be proportional because they are colinear so the ratio (that fraction) must be equal

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can understand that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lemme try draw something to show you what i meandw:1438437049240:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0like this in case the ratio of the triangle is 1:2 or 1/2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its similar as the question you had but the proportion is not so straightforward

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we use the ratio to find the distance of 40+x, with the ratio of the 50/120

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I have to go. Can we finish this later ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay , thank you. i gave you a medal.
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