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Ahat [919]
2 years ago
6

MARKING AS BRAINLIEST!! (Find area of each )

Mathematics
1 answer:
masha68 [24]2 years ago
6 0

Answer:

38 km

Step-by-step explanation:

1. The formula to find the area of a trapezoid is \frac{a+b}{2}h, where a and b are the bases and h is the height.

2. To find the area, all we have to do is plug in these values and simplify!

3. (Solving)

  • \frac{a+b}{2}h
  • \frac{4.3+10.9}{2}*5
  • \frac{15.2}{2}*5
  • \frac{76}{2}
  • 38

Therefore, the area is 38 km.

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The z score that has 70.54% of the distribution area is 9.92

<h3>What is a z-score?</h3>

The z-score is a numerical measurement used in statistics to refer to how much a given value differs from the standard deviation.

For the random variable x, the z-score is;

z = (x - 11)/2

therefore, 70.54% of the area under the curve lies to the right of x,

then the area to the left of x is;

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From the standard table, a z-score of -0.54 will yield an area of 29.46% to the left of x.

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Learn more about z score here;

brainly.com/question/4167122

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