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Alecsey [184]
3 years ago
12

How to set the answer up

Mathematics
1 answer:
Korolek [52]3 years ago
3 0

Let s and g represents the numbers of suits and gowns produced.

The number of zippers used is 2s+g.

The number of buttons used is 5s+8g.

In order to use all of the available zippers and buttons, we must have ...

  • 2s + g = 171
  • 5s + 8g = 576

Cramer's rule tells you the solution to the system

  • ax +by = c
  • dx +ey = f

Is given by

  • x = (bf-ey)/(bd-ea)
  • y = (cd-fa)/(bd-ea)

Using this rule on the equations for zippers and buttons, we have

... s = (1·576 -8·171)/(1·5 -8·2) = -792/-11 = 72

... g = (171·5 -2·576)/-11 = -297/-11 = 27

72 suits and 27 gowns can be made from available zippers and buttons.

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Hello from MrBillDoesMath!

Answer:

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Discussion:

Per the attachment,  arc AB spans 110 degrees and arc BC spans 90 degrees (as that is the measure of the central angle subtending it). Hence arc ABC spans 110 + 90 = 200 degrees. As a circle has 360 degrees the smaller arc CA spans  360 - 200  = 160 degrees.  But angle"b" is a tangent chord angle so its measure equals 1/2 the arc spanned, that is 1/2 ( 160 ) = 80 degrees


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Question 8
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Evaluate.<br><img src="https://tex.z-dn.net/?f=%20-%20%20%5Csqrt%7B81%7D%20" id="TexFormula1" title=" - \sqrt{81} " alt=" - \s
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Step-by-step explanation:

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3 3

1

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