3 years ago

Please answer the question in the photo that I have attatched. Please also explain how to solve it so I may solve the others.

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

4 0

Wats Noh is solver for c

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Elza [17]

Answer:

1. (4, 3) and (-3, 4) has Slope = -1/7

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Step-by-step explanation:

If two such points (a,b) and (c,d) are given, then the slope S is given as:

$S = (\frac{d-b}{c-a} )$

Now here, the given set of points are:

1. (4, 3) and (-3, 4)

Here, the slope S = $(\frac{4-3}{-3-4}) = (\frac{1}{-7}) = -(\frac{1}{7})$

⇒ S = -1/7

1. (-2, 0) and (8, -4)

Here, the slope S = $(\frac{-4-0}{8-(-2)}) = (\frac{-4}{10}) = -(\frac{2}{5})$

⇒ S = -2/5

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Answer:
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Steps:
Set equations:
l = 2w
30 = 2l + 2w

Substitute 2w with l in second equation to find l:
30 = 2l + 2w
30 = 2l + l
10 = l

Plug in 10 into first equation to find w:
l = 2w
10 = 2w
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