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faust18 [17]
3 years ago
14

Given data below, what is the mean absolute deviation? 58,88,40,60,72,66,80,48

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0
Mean is 64 and the mean absolute deviation is 12.5
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A pyramid shaped building is 311 feet tall and has a square base with sides of 619 ft. The sides of the building are made from r
zmey [24]

Answer:

Surface area of the reflective glass is 543234.4 square feet.

Step-by-step explanation:

Given that: height = 311 feet, sides of square base = 619 feet.

To determine the slant height, we have;

l^{2} = 311^{2} + 309.5^{2}

   = 96721 + 95790.25

   = 192511.25

⇒ l = \sqrt{192511.25}

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The slant height, l is 438.8 feet.

Considering one reflecting surface of the pyramid, its area = \frac{1}{2} × base × height

  area =  \frac{1}{2} × 619 × 438.8

          = 135808.6

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Since the pyramid has four reflective surfaces,

surface area of the reflective glass = 4 × 135808.6

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So x + x + 2 = 10

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So one runs at 4 km/h and the other at 6 km/h.

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Step-by-step explanation:

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Tom has 39 silver dollars. You can do this on your head. Jimmy has 32, and Tom 39.
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