itzxkaylaa itzxkaylaa

20-04-2021
Mathematics

contestada

can somebody help me please

can somebody help me please class=

Respuesta :

jimrgrant1 jimrgrant1

20-04-2021

Answer:

B

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² = 4² + ([tex]\sqrt{5}[/tex] )² = 16 + 5 = 21 ( take the square root of both sides )

x = [tex]\sqrt{21}[/tex] → B

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