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mel-nik [20]
4 years ago
9

What's 2a - 3 = 4 + 11 ( a + 1

Mathematics
2 answers:
Strike441 [17]4 years ago
8 0
A = -2 if you do it all right
Levart [38]4 years ago
6 0
2a-3=4+11a+11 —>distributive property
2a=7+11a+11
2a=18+11a
-9a=18
18/-9 is -2

Answer:-2
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The frequency table that shows the relative frequency of people older than 40 and don't visit the dentist is:

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Below 40                    0.27                         0.73

Above 40                   0.57                          0.43

<h3>What is the relative frequency required?</h3>

The relative frequency of those older than 40 and don't go annually to a dentist can be found as:

= Number of over 40 who don't go to dentist / Total of those over 40 surveyed

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= 13 / (17 + 13)

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Find out more on relative frequency at brainly.com/question/16832475.

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