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ICSE Class 9 Answered

ch distance formula

can u send the stems to do the sum in the file

 

Asked by v.venkateshalu | 09 Nov, 2020, 12:34: PM
Expert Answer
To find the value of x if the distance between (4, 2) and (x, 6) is 5 units.
 
square root of open parentheses 4 minus straight x close parentheses squared plus open parentheses 2 minus 6 close parentheses squared end root equals 5
rightwards double arrow open parentheses 4 minus straight x close parentheses squared plus open parentheses 2 minus 6 close parentheses squared equals 25
rightwards double arrow 16 minus 8 straight x plus straight x squared plus 16 equals 25
rightwards double arrow 32 minus 8 straight x plus straight x squared equals 25
rightwards double arrow straight x squared minus 8 straight x plus 7 equals 0
rightwards double arrow open parentheses straight x minus 7 close parentheses open parentheses straight x minus 1 close parentheses equals 0
rightwards double arrow straight x equals 7 space or space 1
Answered by Renu Varma | 09 Nov, 2020, 01:06: PM
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