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Korolek [52]
3 years ago
5

Layla calculates the mean of the ages of 10 students on her bus, and she discovers the average(mean) age is 12.8. What will happ

en to the mean if she includes her bus driver's age of 56 in her data set? *
The mean will stay the same.
The mean will decrease.
The mean will increase.
There isn't enough information.
Mathematics
1 answer:
Papessa [141]3 years ago
7 0
Hey it’s 42 but carry the two to answer the two to my my
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Line segment CD is shown on a coordinate grid:
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Answer:

im pretty sure the answer would be C'D' and CD would be equal in length!

Step-by-step explanation:

because you are only reflecting it across the y-axis, no changes will be made to the line itself, only the location of the line :)

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Answer:

  x = 22.5°

Step-by-step explanation:

The interior angle at E is (180 -4x), the supplement of the exterior angle there, 4x. The sum of angles 2x and (180-4x) will be equal to 6x, because alternate interior angles at transversal BE are congruent:

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The value of x is 22.5°.

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Marcello is constructing the perpendicular bisector of AB. He has already constructed arcs as shown.
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The replica of the Empire State Building with its antenna spire in Las Vegas is
postnew [5]

Answer: \frac{485}{ 1,454}

Step-by-step explanation:

For this exercuse you need to analize the information provided. You know that:

1) The height of the replica of the Empire State Building with its antenna spire in Las Vegas is 485 feet.

2) The height of the real Empire State building is 1,454 feet.

Finally, in order to find the ratio of height of the replica to the height of the real Empire State building, its necessary to divide the height of the replica of the Empire State Building by the height of the real Empire State building.

Therefore, trough this procedure you get that the ratio of height of the replica to the height of the real Empire State building is:

 ratio=\frac{heigth_{ replica}}{heigth_{real}}=\frac{485}{ 1,454}

(This fraction cannot be reduced)

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