QR=9 QP=6 TU=19 TS=? Okay so the triangles are kindred, now the equation can be made 9/16=6/x So now we are going to cross multiply 9x=114 Now divide both sides by 912 2/3 Your answer is: TS=12.6
Reason number 1 (before) is that you could contaminate your samples if you have foreign material on your hands. Reason number 2 (after) is that you could spread<span>/or ingest dangerous chemicals or substances that you have handled in the lab.</span>
