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Ludmilka [50]
2 years ago
15

Factoring polynomials -12n2-11n=-15

Mathematics
2 answers:
bagirrra123 [75]2 years ago
3 0

Answer:

n=3/4,-5/3

Step-by-step explanation:

insens350 [35]2 years ago
3 0

Answer:

  • (3n + 5)(4n - 3) = 0

Step-by-step explanation:

  • -12 n² - 11n = -15
  • 12n² + 11n - 15 = 0
  • 12n² + 20n - 9n - 15 = 0
  • 4n(3n + 5) - 3(3n + 5) = 0
  • (3n + 5)(4n - 3) = 0
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Answer:

Sine θ = 5/13

Step-by-step explanation:

From the question given above, the following data were obtained:

Cos θ = 12/13

Sine θ =?

Next, we shall determine the opposite. This can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos θ = 12/13

Adjacent = 12

Hypothenus = 13

Opposite =?

Hypothenus² = Opposite² + Adjacent²

13² = Opposite² + 12²

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Collect like terms

169 – 144 = Opposite²

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Take the square root of both side

Opposite = √25

Opposite = 5

Finally, we shall determine the Sine θ. This can be obtained as follow:

Opposite = 5

Hypothenus = 13

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Sine θ = 5/13

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