kaciemarcil kaciemarcil

13-03-2021
Mathematics

contestada

a[tex]a^{2}+12^{2} = 13^{2}[/tex]

Respuesta :

jimrgrant1 jimrgrant1

13-03-2021

Answer:

a = ± 5

Step-by-step explanation:

Given

a² + 12² = 13² , that is

a² + 144 = 169 ( subtract 144 from both sides )

a² = 25 ( take the square root of both sides )

a = ± [tex]\sqrt{25}[/tex] = ± 5

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