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Snezhnost [94]
4 years ago
12

Segments AB, DC and Ec intersect at point C. Angel DCE measures 148. Find the value of x.

Mathematics
1 answer:
Anna71 [15]4 years ago
6 0

The image is attached.

Answer:

x = 16°

Step-by-step explanation:

Segment AB, segment DC and segment EC all intersect at point C.

Here, we are told angle DCE measures 148°.

This is a semi-circle, and the total angle of a semi-circle is 180°.

Which means, x+x+148 = 180

Solving for x, we have:

x+x+148 = 180

2x + 148 = 180

2x = 180 - 148

2x = 32

x = \frac{32}{2}

x = 16°

The value of x is 16°

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Answer:

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3 years ago
What percentage of the data falls outside 1 standard deviation of the mean?
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We describe the area of the curve with the help of standard deviations.

With in 1 standard deviation about the mean i.e. from -1 s.d. (left of mean) to +1 s.d. (right of mean), it covers 68% of the total area of curve.

So, the data that falls outside 1 standard deviation of the mean would be equal to (100% - 68%) i.e. 32%.

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3 years ago
Please help me it’s due today
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Answer:

Northside

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Range: 32

IQR: 17

Southside:

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Range: 38

IQR: 22

Step-by-step explanation:

Northside first

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Median is 36 since it's in the middle

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Subtract 49 and 32 (49-32) = 17

Southside

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The range is 61 - 23 = 38 (Greatest - least)

The IQR is 52 - 30 = 22

Hope this helps!

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Answer:

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