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Pavlova-9 [17]
3 years ago
10

Write the equation of the line that passes through the points (7,-4)and (−7,1). Put your answer in fully reduced point-slope for

m, unless it is a vertical or horizontal line.
Mathematics
1 answer:
Alika [10]3 years ago
7 0

9514 1404 393

Answer:

  y +4 = -5/14(x -7)

Step-by-step explanation:

The slope can be found using the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (1 -(-4))/(-7-7) = 5/-14 = -5/14

The point-slope form is ...

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

Filling in the given values, we have ...

  y +4 = -5/14(x -7)

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An airplane started at point K, travelled 560 miles to point L, adjusted its route and travelled another 575 miles to point M. I
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Answer:

Step-by-step explanation:

Using the cosine theorem:

c^{2} =a^{2} +b^{2} -abcos\beta

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\beta =cos^{-1} (\frac{560^{2}+575^{2}-952^{2}   }{2*560*575} )

The angle is 114.014 degrees if we substract 90 degrees it means that at point L the plane changed its angle by 24 degrees

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Nick can type 30 words a minute.<br> How many words can be typed in 9.5 minutes?
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Answer:

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Step-by-step explanation:

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32 it’s as simple as 4(5) + 12
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A woman has 21 total coins in her pocket, all of which are either dimes or quarters. If the total value of her change is $3.90,
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Answer with Step-by-step explanation:

Let there be d dimes and q quarters

A woman has 21 total coins in her pocket.

⇒ d+q=21    ------(1)

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The total value of her change is $3.90

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