True or false: An argument that uses logic in the form of definitions, properties, and previously previously proved principles to show that a conclusion is true is a valid argument

13.46

step-by-step explanation:

16.80 x .20 = 13.46

t

step-by-step explanation:

ever thing time 1 is a multiply by 1 it get  

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )