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inn [45]
3 years ago
13

Simplify each expression 7x +5(x +3) +4x -x -2

Mathematics
2 answers:
oee [108]3 years ago
5 0
7x+5x+15+4x+(-x)+(-2)
15x+13
Hope this helps and please give brainliest!
Vladimir [108]3 years ago
3 0
<span>we have 

7x +5(x +3) +4x -x -2

</span><span>(7x +5x +4x-x)+(15 -2)

15x+13-----------------15(x+13/15)</span>
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Kisachek [45]

Answer: 154 people

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6 0
3 years ago
Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean smaller than
kifflom [539]
The mean is simply the average of the data set. 

Mean = (3+4+6+7+9+9+11)/7 = 7

The median, on the other hand, is the middle data when you arrange them from least to greatest. The middle data here is 7. 

Hence, initially, the mean and median are equal. In order to make the mean less than median, add another data point which makes it the lowest. For example, we can add 1 as the new data point. The mean would be:

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5 0
4 years ago
Read 2 more answers
The measure of an exterior angle of a regular polygon is given below. Find the measure of an interior angle. Then find the numbe
FromTheMoon [43]

Answer:

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Step-by-step explanation:

Given that:

We have a regular polygon with number of sides unknown.

Measure of an exterior angle of the polygon = 20^\circ

To find:

Measure of an interior angle and the number of sides of the polygon?

Solution:

Let us have a look at the relation of sum of external angles.

Sum of one internal angle and its corresponding external angle = 180^\circ

Internal angle + external angle = 180^\circ

Internal angle = 180^\circ - 20^\circ = 160^\circ

Sum of all the external of a regular polygon = 360^\circ

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n \times 20^\circ = 360^\circ\\\Rightarrow n = 18

Therefore, the answers are:

Internal angle = 160^\circ

Number of sides = 18

8 0
3 years ago
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Ilya [14]

Answer:

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