Which of the following side lengths DO NOT make a right triangle? 6-8-10

3-4-5

6-8-9

9-12-15
EXPLAIN HOW YOU FIGURED IT OUT!!! PLEASE

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

How do you use the elimination method for this question? explain, because i really want to understand!

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°