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astra-53 [7]
3 years ago
8

What is the answer 25b • (3a2 - 1)

Mathematics
2 answers:
Usimov [2.4K]3 years ago
4 0

Answer:

Step-by-step explanation:

25b * (3a² - 1) = 25b * 3a² - 25b * 1

                     = 75ba² - 25b

Distributive law upon subtraction:

a(x - y) = ax - ay

Vaselesa [24]3 years ago
4 0

Answer:

25b(3a*2-1)=25b(6a-1)

Step-by-step explanation:

25b(3a*2-1)

Multiply the numbers: 3 * 2 = 6

=25b(6a-1)

Hope I helped, may I get brainliest and a thanks?

Thank you, have a good day! =)

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NeTakaya

The correct answers are:

  • The ordered pair (7, 19) is a solution to the first equation because it makes the first equation true.
  • The ordered pair (7, 19) is not a solution to the system because it makes at least one of the equations false.

Further explanation:

Given equations are:

2x-y = -5

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We have to check whether the given statements are true or not. In order to find that we have to put the points in the equations

Putting the point in 2x-y = -5

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Putting the point in x+3y=22

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The point satisfies the first equation but doesn't satisfy the second. So,

1. The ordered pair (7, 19) is a solution to the first equation because it makes the first equation true.

This statement is true as the point satisfies the first equation

2. The ordered pair (7, 19) is a solution to the second equation because it makes the second equation true.

This Statement is false.

3. The ordered pair (7, 19) is not a solution to the system because it makes at least one of the equations false.

This statement is true.

4. The ordered pair (7, 19) is a solution to the system because it makes both equations true.

This statement is false as the ordered pair doesn't satisfy both equations.

Keywords: Solution of system of equations, linear equations

Learn more about solution of linear equations at:

  • brainly.com/question/13168205
  • brainly.com/question/1465430

#LearnwithBrainly

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percent of increase for a population that changed from 25,000 to 30,000

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