InspectorJoe
  • InspectorJoe
need help correcting my answers on two problems: (6,1) and (-20,35) also (60, 5) and (-20, 35)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
jim_thompson5910
  • jim_thompson5910
you'll need to post the full problem please
InspectorJoe
  • InspectorJoe
find out the distance between the pair of points. give an exact answer and where appropriate an approximation to there decimal place
jim_thompson5910
  • jim_thompson5910
thanks

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jim_thompson5910
  • jim_thompson5910
you'll need to use the distance formula \[\Large d = \sqrt{\left(x_{2}-x_{1}\right)^2+\left(y_{2}-y_{1}\right)^2}\]
jim_thompson5910
  • jim_thompson5910
for (6,1) and (-20,35) we see that x1 = 6 y1 = 1 x2 = -20 y2 = 35
InspectorJoe
  • InspectorJoe
yes i know but my answers are off trying to figure out why or how it should look since i can't seems to figure out why
jim_thompson5910
  • jim_thompson5910
what answer did you get for the first one
InspectorJoe
  • InspectorJoe
yes I got that
InspectorJoe
  • InspectorJoe
the first one I got \[D=\sqrt{2,500}\]
InspectorJoe
  • InspectorJoe
the second i got \[D=\sqrt{1492}\]
jim_thompson5910
  • jim_thompson5910
the first one is too big
jim_thompson5910
  • jim_thompson5910
one sec
jim_thompson5910
  • jim_thompson5910
For for (6,1) and (-20,35) \[\Large d = \sqrt{\left(x_{2}-x_{1}\right)^2+\left(y_{2}-y_{1}\right)^2}\] \[\Large d = \sqrt{\left(6-(-20)\right)^2+\left(1-35\right)^2}\] \[\Large d = \sqrt{\left(6+20\right)^2+\left(1-35\right)^2}\] \[\Large d = \sqrt{\left(26\right)^2+\left(-34\right)^2}\] \[\Large d = \sqrt{676+1156}\] \[\Large d = \sqrt{1832}\] Now you can simplify the radical to get... \[\Large d = \sqrt{1832}\] \[\Large d = \sqrt{4*458}\] \[\Large d = \sqrt{4}*\sqrt{458}\] \[\Large d = 2\sqrt{458}\]
jim_thompson5910
  • jim_thompson5910
hopefully you can see how I got all that
InspectorJoe
  • InspectorJoe
the book gives us an answer of \[\sqrt{45,6.708}\]
jim_thompson5910
  • jim_thompson5910
something is odd about that format
jim_thompson5910
  • jim_thompson5910
are you sure it says that?
InspectorJoe
  • InspectorJoe
yes
InspectorJoe
  • InspectorJoe
question though why do you go the opposite when replacing the formula with the problem. or does it matter. meaning you did X1 - X2 and not X2-X1

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