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jekas [21]
2 years ago
5

Mhanifa please help! Look at the picture attached!!!

Mathematics
1 answer:
inessss [21]2 years ago
8 0

Answer:

(17)

Sum of interior angles of a quadrilateral is 360°

  • 110° + 130° + x + x - 3° = 360°
  • 2x = 360° - 237°
  • 2x = 123°
  • x = 61.5°

(18)

Sum of interior angles of a hexagon is 180°*(6 - 2) = 720°

  • 2*90° + 2x + 2(x + 22°) = 720°
  • 90° + x + x + 22° = 360°
  • 2x = 360° - 112°
  • 2x = 248°
  • x = 124°

(19)

Interior angles of a given pentagon are all marked as congruent, so the exterior angles are congruent too.

Sum of exterior angles is 360°.

  • x = 360°/5
  • x = 72°
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Margin of error  for a 95% of confidence intervals is 0.261

Step-by-step explanation:

<u>Step1:-</u>

 Sample n = 81 business students over a one-week period.

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Margin of error (M.E) = \frac{Z_{\alpha  }S.D }{\sqrt{n} }

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<u>Step2:-</u>

<u />Margin of error (M.E) = \frac{Z_{\alpha  }S.D }{\sqrt{n} }<u />

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What is the volume of the square pyramid with base edges 32 mm and slant height 34 mm?
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Answer:

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Step-by-step explanation:

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I need help with number 11. Can someone please help me.
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Answer:

9

Step-by-step explanation:


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