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jasenka [17]
3 years ago
7

How can bar diagrams be used to model numerical expressions

Mathematics
2 answers:
Aleks [24]3 years ago
8 0
They can be used by giving examples

N76 [4]3 years ago
7 0

Answer:

Word problems often produce a great amount of anxiety for students.

Bar diagrams clearly align with the four-step problem-solving plan.

• Students create a visual representation to demonstrate a clear understanding of  the problem.

  • The bar diagram requires students to identify the problem’s setting and the  values associated with the situation.

  • The completed bar diagram leads to a definitive solution plan.

  • The bar diagram can be used as a visual clue to determine the reasonableness of  the solution.

Combined with the values provided in the problem, a solution plan is revealed. After  solving the problem, the bar diagram can be used to check the solution by substituting the value into the  drawing and using logical reasoning to assess reasonableness.

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Solve and graph the absolute value inequality: |2x + 4| > 8. number line with open circles on negative 6 and 2, shading in be
Klio2033 [76]
|2x+4| > 8 breaks down into two inequalities: 2x+4 > 8 or 2x+4 < -8

Solving <span> 2x+4 > 8 leads to...
</span><span>2x+4 > 8
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x > 2

Solving <span>2x+4 < -8 leads to...
</span><span>2x+4 < -8
</span><span>2x+4-4 < -8-4
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x < -6

So either x > 2 or x < -6

You'll have 2 open circles at 2 and -6 on the number line. The shaded region will be the region to the left of -6 and to the right of 2. Basically everything but in between -6 and 2
6 0
3 years ago
Find the product. 1.5m6(-2m2)4
Pani-rosa [81]

Step  1  :

Equation at the end of step  1  :

   15

 ((——•(m6))•(0-2m2))•4

   10

Step  2  :

           3

Simplify   —

           2

Equation at the end of step  2  :

   3

 ((— • m6) •  -2m2) • 4

   2

Step  3  :

Equation at the end of step  3  :

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 (——— •  -2m2) • 4

   2

Step  4  :

Multiplying exponential expressions :

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Canceling Out :

4.2      Canceling out  2  as it appears on both sides of the fraction line

Equation at the end of step  4  :

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Step  5  :

Final result :

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6 0
2 years ago
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Answer:

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