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08-06-2021
Mathematics

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Find the measure of AB

A. 20
B. 21
C. 22
D. 14

Find the measure of AB A 20 B 21 C 22 D 14 class=

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Аноним Аноним

08-06-2021

Answer:

[tex]CB.CA=CD .CK[/tex]

[tex]9(9+2x+5)=10(10+2x+1)[/tex]

[tex]9(2x+14)=10(2x+11)[/tex]

[tex]18x+126=20x+110[/tex]

[tex]126-110=20x-18x[/tex]

[tex]16=2x->x=8[/tex]

[tex]AB=2(18)+5[/tex]

[tex]=21[/tex]

So, your answer is B) 21

hope it helps...

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