Respuesta :

Answer:

The square root of 424 is expressed as √424 in the radical form and as (424)½ or (424)0.5 in the exponent form. The square root of 424 rounded up to 8 decimal places is 20.59126028.

Step-by-step explanation:

luclaporte2

Answer:

20 and 21

Step-by-step explanation:

424 = 400 + 20 + 4. √400 = 20, as √4 = 2

21² = (20 + 1)² = 400 + 40 + 1 = 441 > 424.