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matrenka [14]
3 years ago
10

Which of the following numbers is a factor of 78?

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Step-by-step explanation:

78 = 2 * 39 = 2 * 3 * 13.

Since 6 = 2 * 3 and its factors can be found in 78,

Hence the answer is 6. (C)

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11

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algol [13]

Answer: \displaystyle\\\frac{2\pi }{3},\ \frac{5\pi }{3}  .

Step-by-step explanation:

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N=2\\\theta=\frac{2\pi }{3}+2\pi \\ \theta=\frac{2\pi +3*2\pi }{3}\\ \theta=\frac{2\pi +6\pi }{3} \\\theta=\frac{8\pi }{3} \\\theta=2\frac{2}{3} \pi \ \ \ \  (\notin0\leq \theta\leq 2\pi).\\

6 0
1 year ago
Can you help me with this? 7
andrezito [222]

Answer:

65º

Step-by-step explanation:

  • The angle of a straight line is 180º, so ∠ABD=180º and ∠ABC=(180-6x)º
  • The sum of the interior angles of a triangle is 180, so (x+40)º+(3x+10)º+(180-6x)º=180
  • We can solve from there, x+40+3x+10+180-6x=180
  • Combine like terms, -2x+230=180
  • Subtract 230, -2x=-50
  • Divide by -2, x=25
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  2. m∠ABC=(180-6x)º=(180-150)º=30º
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2 years ago
Solve the following system of equations algebraically<br> 3x-y=0<br> 5x+2y=22
Lyrx [107]

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                                                              11x         = 22

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Mumz [18]

/Answer:

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Step-by-step explanation:

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