Answer:
z=(x-1)/2
Step-by-step explanation:
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all have numbers 3 5 4 7
X=14
17^2+b^2=19^2
289+b^2=361
361-289=72
The square root pf 72 is ~8.5
subtract 17 from 31 (to get rid of the triangle bases on the bottom).
31-17=14
