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Dimas [21]
3 years ago
8

which statement describes clean air as a natural resource? Clean air can always be found indoors. Clean air provides nitrogen ga

s for plant respiration. Clean air is produced when high levels of ultrafine particles circulate. Clean air reduces the risk of illnesses and other health problems.
Geography
2 answers:
zloy xaker [14]3 years ago
5 0

Answer:

Which statement describes clean air as a natural resource?

Clean air reduces the risk of illnesses and other health problems.

Oxana [17]3 years ago
4 0

Answer:

Clean air reduces the risk of illnesses and other health problems.

Explanation:

DID THE TEST!!

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Find the perimeter of the polygon with the vertices UC - 2, 4), V(3, 4), and W(3. – 4).
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<em>Answer:</em>

<em>Find the perimeter of the polygon with the vertices UC - 2, 4), V(3, 4), and W(3. – 4).</em>

<em>Explanation:</em>

<em>this is a right triangle, where one angle is 90 degrees. Two sides are perpendicular to each other. </em>

<em> </em>

<em> </em>

<em> </em>

<em>U to V have the same y values so the distance is the difference in x values or 3 - (-2) = 5 </em>

<em> </em>

<em>V to W have the same x values, so the distance is the difference in y values or 4-(-4) = 8 </em>

<em> </em>

<em>U to W is the hypotenuse of the right triangle, = sqr(sum of squares of the other 2 sides) = sqr(25+64)=sqr(89) </em>

<em> </em>

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<em>Perimeter = sum of the 3 sides = 5 + 8 + sqr(89) = 13 + sqr89 = 13 + 9.44 = 22.44 </em>

<em> </em>

<em>81 is 9 squared.  100 is 10 squared.  91 is about 9.5 squared.  Rounded to 2 decimal places, it's 9.44 </em>

<em> </em>

<em> </em>

<em> </em>

<em>It might help if you plot the 3 points on a graph. That makes it clear you're dealing with a right triangle. </em>

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<em> </em>

<em> </em>

<em>Or if you want, you could have used the distance formula on all 3 sides, but it simplifies to the above. </em>

<em> </em>

<em />

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