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Oksi-84 [34.3K]
3 years ago
8

Solve s=2(lw+lh+wh) for w

Mathematics
1 answer:
Scilla [17]3 years ago
7 0

                                                                   s = 2(lw + lh + wh)

Divide each side by  2 :                            s/2 = lw + lh + wh

Subtract 'lh' from each side:                s/2 - lh = lw + wh

Combine the 'w' terms:                        s/2 - lh = w(l + h)

Divide each side by (l + h):  (s/2 - lh) / (l + h) = w

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Which triangle is possible?
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Answer:

  (a)  3 ft, 4 ft, 5 ft

Step-by-step explanation:

The triangle inequality requires the sum of the two short sides exceed the long side.

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a) 3 ft + 4 ft = 7 ft > 5 ft . . . . . triangle is possible

b) 4 yd + 1 2/3 yd = 5 2/3 yd < 10 yd . . . . not a possible triangle

c) 3 ft + 3 ft = 6 ft < 7 ft . . . . not a possible triangle

d) 4 in + 4 in = 8 in . . . . not a possible triangle (not greater than 8 in)

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The first set of side lengths can form a triangle: 3 ft, 4 ft, 5 ft.

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Step-by-step explanation:

<u>Given number:</u>

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According to this theorem, GF*GE = GH*GA

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x^2 +3x -18 =x^2 +2x -8

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