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Zinaida [17]
3 years ago
6

Explain how to do distributive property. Use an example.

Mathematics
1 answer:
klasskru [66]3 years ago
3 0

Answer:

so we have 4(3x + 10)

then we are going to take the 4 and distribute it into our problem

so: 4(times)3x and then 4( times)10

to get :

<h2>12x+40</h2>

Step-by-step explanation:

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Use the elimination method to solve the system of equations. Choose the
Yakvenalex [24]

Answer:

(2, 7) is the correct ordered pair.

Step-by-step explanation:

5x + 3y = 31

2x + 3y = 25   Subtract to eliminate the y variable:

3x = 6

x = 6/3

x = 2.

Substitute x = 2 in the first equation:

5*2 + 3y = 31

3y = 31-10 = 21

y = 21/3

y = 7.

Check the result by substituting for x and y in the second equation:

2(2) + 3(7) = 25

4 + 21 = 25

25 = 25.

5 0
3 years ago
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Phoenix [80]

Answer:

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Step-by-step explanation:

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3 years ago
Tell whether the ordered pair (-1,3) is a solution of the system of linear equations. y=-7x-4 and y=8x+5
irinina [24]

Answer:

Since it does not plug in to the second linear equation, the ordered pair is not a solution of the linear system.

Step-by-step explanation:

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8 0
3 years ago
Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning The average grade on the
Nat2105 [25]

Answer:

The correct option is F.

Step-by-step explanation:

A parameter is a single numerical value describing a certain characteristic of the entire population. It is computed using the population values. For example, population mean, population variance, etc.

A statistic is also a numerical value that defines certain characteristic of a sample. It is computed using the sample values. For example, sample mean, sample variance, etc.

Here the mean score for all the 50 students in the midterm Math exam is computed as 88.

This mean value is a parameter because it is computed using the entire population of 50 students in the math class,i.e. all the population values were included in the calculation of mean 88.

Thus, the correct option is F.

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3 years ago
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