Segment Addition Postulate

Mathematics
Tutor: None Selected Time limit: 1 Day

N is between A and X. AN=x+1, NX= x^2, and AN=21. Find x and the length of each segment.

Sep 11th, 2015

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AN = 21 =x+1

x=21-1 =20

NX= x^2

NX=20^2

NX= 400

AX = AN+NX = 21 +400 = 421

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 11th, 2015

how do i solve for X???


Sep 11th, 2015

WE KNOW THAT AN =x+1

again we know that AN= 21

THEREFORE

AN=x+1 =21

x+1=21

x=21-1

x= 20


NX= x^2

NX=20^2

NX= 400

AX = AN+NX = 21 +400 = 421


Sep 11th, 2015

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