The perimeter of a rectangle is 68 ft.

1 answer:

5 0

Let the length be 9x and the width = 8x
Perimeter = 2(l + w) = 2(9x + 8x) = 2(17x) = 34x = 68
x = 68/34 = 2
9x = 9(2) = 18 ft
8x = 8(2) = 16 ft
Therefore, dimensions are 18 ft by 16ft

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Using the Empirical Rule, it is found that:

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The Empirical Rule states that, in a bell-shaped distribution:

Approximately 68% of the measures are within 1 standard deviation of the mean.
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Item a:

$43.5 - 3(2.77) = 35.26$