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finlep [7]
3 years ago
10

BRAINLIEST ASAP! PLEASE HELP ME. :)

Mathematics
1 answer:
yuradex [85]3 years ago
6 0
<h3>Answer: Perpendicular</h3>

=========================================================

Work Shown:

Solve the first equation for y

3x+7y = 15

7y = -3x+15

y = (-3x+15)/7

y = (-3/7)x + 15/7

The slope here is -3/7

-------

Solve the second equation for y

7x-3y = 6

-3y = -7x+6

y = (-7x+6)/(-3)

y = (7/3)x - 2

The slope here is 7/3

-------

The slopes -3/7 and 7/3 are not equal, so we don't have parallel lines.

The lines however are perpendicular because the slopes multiply to -1

(-3/7)(7/3) = (-3*7)/(7*3) = -21/21 = -1

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Paraphin [41]
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The total trip should not exceed 8 hours.
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5 0
3 years ago
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6 0
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<span> I am assuming you want to prove:
csc(x)/[1 - cos(x)] = [1 + cos(x)]/sin^3(x).

 </span>
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LHS = csc(x)/[1 - cos(x)]
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= {csc(x)[1 + cos(x)]}/[1 - cos^2(x)], via difference of squares
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 </span>
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<span>I hope this helps! </span>
8 0
3 years ago
Which expression is equivalent to
ozzi
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5 0
3 years ago
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elena-14-01-66 [18.8K]

Answer:

142 its the ans

Step-by-step explanation:

I'm not sure

7 0
3 years ago
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