Rewrite this from the least to the greatest: 10.01, 10.1, 10.001, 1.101, 10

Select the quadratic that has root x = 8 and x = -5

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Which best explains why this triangle is or is not a right triangle ?