3 years ago

The data set is 7,8,10,11. How would the mean, median, and mode change if you added a 9 to the data set?

Mathematics

1 answer:

andrezito [222]3 years ago

3 0

The mean would stay the same, the median would become 9, and the mode would stay the same.

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Just need to know what x is haha

marishachu [46]

Answer: x=14

Step-by-step explanation:

The angles in a triangle are equal to 180 so

6x + 3 + 5x + x + 9 = 180

12x + 12 = 180

-12 -12

12x = 168

x = 14

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3 years ago

Which term describes this figure?

Ann [662]

Hey there! :)

This figure is an irregular polygon. Regular polygons have side lengths that measure the same length. In this polygon, not all the sides are equal. Therefore, it is an irregular polygon.

Your answer is the 2nd choice ⇒ irregular polygon

Hope this helps :)

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3 years ago

A test has two parts, A and B, each containing 10 questions. A student needs to choose 8 questions from part A and 4 questions f

Tpy6a [65]

Part A number of combinations of 8 from 10 = 10C8 = 10C2

= 10*9 / 2 = 45

Part B Number combinations = 10C4 = (10*9*8*7)/ (4*3*2) = 210

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3 years ago