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AnnZ [28]
3 years ago
12

Materials around us can be classified into:

Mathematics
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

A. Elements and Compounds

I think

Step-by-step explanation:

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What is the measure of an exterior angle in a regular polygon with 15 sides?
vlabodo [156]
First, find the measure of an interior angle:
the sum of the interior angles of a polygon is (n-2)*180, n is the number of sides
for a 15-sided polygon, the sum is 13*180
each interior angle is then 13*180/15=156
the measure of each exterior angle=180-156=24
4 0
3 years ago
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Find the geometric mean of 275 and 11 275/x=x/11 x^2= 3025 x=sq rt 3025 now I'm not sure what to do.
Bogdan [553]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
you got it 
<span>except keep going to get </span>
<span>x = ±√3025 </span>
<span>x = ± 55 </span>


<span>check: </span>
<span>275 , 55, 11 </span>
<span>is 55/275 = 11/55 ? YES </span>
<span>is -55/275 = 11/=55 ? YES</span>

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A rectangle has a width of 12 ft and a length of 4 ft. What is the effect on the perimeter when the dimensions are multiplied by
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When the dimensions are multiplied by 6, the perimeter also multiplied by 6.
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What property is 3(x+2)=2x-10
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