The answer of 6and7 irrational number is 6.875
Answer:

Step-by-step explanation:
Using the rule of exponents
×
=
, then
×
=
= 
If you show that the example is showing a false statement then you are disproving the example/problem.
Answer:
YZ=16
Explanation:
XWY=20 XWZ=40, XWY is half of XWZ, which means ZWY =20. Now you can say that the triangles are congruent through the AAS postulate, so you know that YZ-16 because of CPCTC