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Furkat [3]
3 years ago
14

Please help with this question!! I need help!!

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

y = -2x - 3

Step-by-step explanation:

The altitude will be a line perpendicular the the opposite side DE.

The slope of DE = (3 - -1) / (3 - -5)

= 4/8 = 1/2

So the slope of the altitude = -1 / 1/2 = -2

Thus the equation of the altitude through F  (1, -5) can be found using the point-slope form y - y1 = m(x - x1):-

y - -5 = -2(x - 1)

y + 5 = -2x + 2

y = -2x + 2 - 5

y = -2x - 3    (answer)

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The answer will be Mean = 135 Variance = 62 and Standard Deviation = 8

<h3>What is the standard deviation? </h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that :

Proportion (p) = 54%

Sample size (n) = 250

Using Normal approximation :

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Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46

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Standard deviation = 7.8803553 = 8

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