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Tanzania [10]
3 years ago
10

If 10 is added to each observation and the following data set what is the relationship between the original standard deviation a

nd the new standard deviation
1 5 9 15 27 32
A the original standard deviation is 10 times the new standard deviation
B the original standard deviation is equal to the new standard deviation
C the new standard deviation is 10 times the original standard deviation
D the new standard deviation is 10 times more than the original standard deviation
Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer:

g

Step-by-step explanation:

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Rom4ik [11]
<h3>Answer:  10 cm  (choice A)</h3>

====================================================

Explanation:

One equation we could solve is

x/2.5 = 30/7.5

Note the x/2.5 has us dividing the vertical sides, while 30/7.5 is the same idea for the horizontal sides. The order is large over small. You could do small over large, but make sure you keep both sides consistent.

Solving for x leads to...

x/2.5 = 30/7.5

x*7.5 = 2.5*30

7.5x = 75

x = 75/7.5

x = 10  (choice A)

There are many other possible equations that lead to the same answer. One other possible equation is x/30 = 2.5/7.5

These proportions are possible due to the fact we have similar triangles.

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3 years ago
The expression -7y is a <br> A term <br> B variable <br> C constant
Anastaziya [24]

Answer:

A. Term

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A constant does not cointain a variable, a variable by itself does not contain a constant.

It's a term because it has a constant and a variable.

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