krissywatts
i need help filling in the blanks below:
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tercespot
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what blanks
uber1337h4xx0r
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She's writing it right now, tercespot.
krissywatts
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|dw:1353118530228:dw|
krissywatts
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Point A is the begining of the line on the left its elevation is in the chart above. Point B is the end of the line on the roght its elevation is in the chart above.
Using mathematical interpolation calculate the distance from Point A for each full foot elevation in the chart below. give answer to tenths of inch.
krissywatts
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|dw:1353118997511:dw|
krissywatts
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i need help with the rest i goy some started already
krissywatts
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@jim_thompson5910
jim_thompson5910
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did you see how to get 4.8 for the first line?
krissywatts
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yes
krissywatts
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the rest seem to be off by a few numbers so idk if im right
jim_thompson5910
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If not, then you basically have this triangle
|dw:1353120334241:dw|
jim_thompson5910
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and you solve for x
6/x = 0.5/0.4
6*0.4 = 0.5x
2.4 = 0.5x
2.4/0.5 = x
x = 4.8
jim_thompson5910
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for the second line, you're going to have
|dw:1353120446761:dw|
jim_thompson5910
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so
4.1/0.4= 3.5/x
4.1x = 0.4*3.5
4.1x = 1.4
x = 1.4/4.1
x = 0.34146
x = 0.3 (round to the nearest tenths place)
jim_thompson5910
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for line 3, you're going to have
|dw:1353120667399:dw|
krissywatts
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.oh okay so roun to nearest tenth of an inch
krissywatts
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i forgot to read that part sorry
jim_thompson5910
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4.1/0.4= 3.5/x
4.1x = 1.4*3.5
4.1x = 4.9
x = 4.9/4.1
x = 1.19512
x = 1.2 (round to the nearest tenths place)
jim_thompson5910
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yeah so it looks like you have it pretty much
krissywatts
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thanks