amelieescobar
amelieescobar amelieescobar
  • 10-04-2021
  • Mathematics
contestada

pls help me with all of them ill give 81 points

pls help me with all of them ill give 81 points class=

Respuesta :

ian2006huang
ian2006huang ian2006huang
  • 10-04-2021

Answer:

1. No

2. Yes

3. [tex]\sqrt{80}[/tex]

4. x=8

Step-by-step explanation:

1.

6^2+8^2

=36+64=100

9^2=81

100≠81

No

2.

5^2+12^2

=25+144

=169

13^2=169

169=169

Yes

3.

x^2=4^2+8^2

x^2=16+64

x^2=80

x=[tex]\sqrt{80}[/tex]

4.

x^2+6^2=10^2

x^2+36=100

x^2=64

x=[tex]\sqrt{64}[/tex]=8

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