karen101120 karen101120
  • 20-01-2021
  • Mathematics
contestada

PLEASE HELP What is the x value??

PLEASE HELP What is the x value class=

Respuesta :

Kevinn2027 Kevinn2027
  • 20-01-2021

Answer:

9

Step-by-step explanation:

21^2-19^2=80

sqaure root of 80 to the nearest 10th is

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