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erastovalidia [21]
3 years ago
12

Use only an associative property to rewrite the following expression. (pk)•r=

Mathematics
1 answer:
Gennadij [26K]3 years ago
5 0

Answer:

Step-by-step explanation:

(pk) * r = p * (kr)

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Answer:

B. The division property of equality

Step-by-step explanation:

The division property of equality states that when we divide both sides of an equation by the same non-zero number, the two sides remain equal. That is, if a, b, and c are real numbers such that a = b and c ≠0, then a c = a c. Therefore B is the right answer.

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2 years ago
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For the orchestra concert, the orchestra director has asked that everyone wear either black pants or a black skirt. Five times a
Andru [333]

Answer:

A:10

Step-by-step explanation:

1. Analyze: There are 60 people total and there is 5x more pants than skirts. This outrules 60 and 50.

2: Testing put all of your numbers into an equation. Since you need the total to be 60 you can do this. I am using p(pants) S(skirts for my example. S+S5=60 10 works in this equation.

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3 years ago
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lesya692 [45]

Answer:

-315 + 100 & -230 + 15

Step-by-step explanation:

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2 years ago
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Find the measure of each angle indicated
Alenkinab [10]
The measure of the angle is 150 degrees.

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3 years ago
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Hoochie [10]

Answer:

x^2 +4x -4

Step-by-step explanation:

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f(x) + g(x) = 4x+1 + x^2 -5

               = x^2 +4x -4

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