aaddrrii
aaddrrii
31-01-2018
Mathematics
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altavistard
altavistard
31-01-2018
Problem 9:
Use the distance formula:
d = sqrt ( [x2-x1]^2 + [y2-y1]^2 )
Here, d = sqrt ( [9-4)^2 + [-1-7]^2 ) = sqrt (25+64) = sqrt(89) (answer)
Do exactly the same thing for #10 and #11.
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