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Alexandra [31]
3 years ago
6

Which expressions are equivalent?

Mathematics
2 answers:
Hatshy [7]3 years ago
6 0

Answer:

3(a-b) and 3a-3b. Equivalent

2a(2+b) and 4ab. Not equivalent

Step-by-step explanation:

hope this helps:)

solniwko [45]3 years ago
5 0
GO TO PHYSICS COLLEGE AND ANSWER MY QUESTIONS PLEASE SO I CAN MARK YOU BRAINLESSLY (however you spell the thang) The questions are also above too
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How do you find the solution of this proportion?<br> 4/9 = m2-1/54 <br> m2 is m to the power of 2
elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

4/9 = m^2-1/54

Add 1/54 to both sides

4/9+ 1/54 = m^2-1/54 +1/54

4/9+ 1/54 = m^2

Get a common denominator of 54

4/9 *6/6 + 1/54 = m^2

24/54 + 1/54 = m^2

25/54 = m^2

Take the square root of each side

±sqrt(25/54) = sqrt(m^2)

±sqrt(25/54) = m

±sqrt(25)/sqrt(54) = m

±sqrt(25)/sqrt(9)sqrt(6) = m

±5/3sqrt(6) = m

±5/3sqrt(6) *sqrt(6)/sqrt(6) = m

±5sqrt(6)/3*6 = m

±5sqrt(6)/6 = m

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3 years ago
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