
1) x=9, because we can use the Pythagorean theorem, x^2 + 144 = 225, x^2 = 81
2)
, because 6^2 +6^2 = 72, 
3)
, because 
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Be at least 18 years old at the time of filing Form N-400, Application for Naturalization.
Be a permanent resident (have a “Green Card”) for at least 5 years.
Show that you have lived for at least 3 months in the state or USCIS district where you apply.
Demonstrate continuous residence in the United States for at least 5 years immediately preceding the date of filing Form N-400.
Show that you have been physically present in the United States for at least 30 months out of the 5 years immediately preceding the date of filing Form N-400.
Be able to read, write, and speak basic English.
Have a basic understanding of U.S. history and government (civics).
Be a person of good moral character.
Demonstrate an attachment to the principles and ideals of the U.S. Constitution.
Answer:
Good ozone is found in the stratosphere, far above the Earth's surface. At that height, it absorbs and scatters ultraviolet (UV) radiation from the Sun, particularly the most dangerous UV-B and UV-C forms. Ozone is the planet's natural sunscreen.
Explanation:
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I think the answer to your question, is Public Support. Hope it helps......