When you say "which," it sounds like it should be multiple choice. Anyways, here's the simplified form of


(When simplifying fractions, you should <em>never</em> have a square root on the bottom. Multiply by the square root to cancel it out)
Answer:
32 +6y^2+
Step-by-step explanation:
43.0 or if your changing it to kilograms 0.00056 kilograms would be the answer.
Step-by-step explanation:
1. 18^2 - 10^2 = 324 - 100 = 224
Sqt(224)=14.9666
Approximate = 14.97
2. 100 - 16 = 84
Sqrt 84 = 9.1652
Approximate = 9.17
3. 225 - 49 = 176
Sqrt 176 = 13.2665
Approximate = 13.27
4. 361 - 144 = 217
Sqrt 217 = 14.7309
Approximate = 14.73