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Umnica [9.8K]
3 years ago
11

Find the length of line segment A (-2,3) B (2, 1)

Mathematics
1 answer:
Gekata [30.6K]3 years ago
6 0
Find the distance between points A-2; 3, B2; 1:

d = √<span>(<span>xb</span> - <span>xa</span>)2 + (<span>yb</span> - <span>ya</span>)2</span> = 

= √<span>(2 - (-2))2 + (1 - 3)2</span> = 

= √<span>42 + (-2)2</span> = √16 + 4 =


<span>= <span>√20</span><span><span> </span></span></span>
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What is the slope of the line through the points (4,2) and (-16,-6)
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2 / 5.

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3 years ago
Read 2 more answers
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Let us assume that the number of beige tiles bought by Susan = B
Number of red tiles bought by Susan = R
Number of navy-blue tiles bought by Susan =N
Number of tiles bought altogether = 435
Now from the given question we know:
Number of red tiles bought is 25 more than the number of beige tiles.
So
 R = 25 + B
Number of navy blue tiles bought is 3 times that of the number of beige tile bought
So
N = 3B
We already know that the total number of tiles bought is 435
Hence
B + R + N = 435
B + (25 + B) + 3B = 435
5B + 25 = 435
5B = 435 -25
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B = 82
R = 25 + B
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N = 3B
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5 0
3 years ago
Charlie's weight is nine kilograms greater than his brother's. Together they weigh 99 kilograms. Let x represent the weight of t
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C=x+9, c+x=99, c=99-x

So we have two equations equal to c, c=x+9 and c=99-x, since c=c:

x+9=99-x

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x=45, and since c=x+9, c=54

So Charlie weighs 54 kg and his brother weighs 45 kg.
4 0
3 years ago
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