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Eduardwww [97]
3 years ago
14

Solve the equation for x. 2x2 − 72 = 0 Enter you solution in set notation.

Mathematics
1 answer:
CaHeK987 [17]3 years ago
4 0

Answer:

The set of solution is {-6,6}

Step-by-step explanation:

That means 2x^2-72=0?

If yes, here the solution for this:

x^2-36=0 (divise both sides by 2)

x^2=36

x^2=6^2

We have x=6 or x= - 6

The set of solution is {-6,6}.

Hope that useful for you.

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DaniilM [7]

Answer:

They sold 60 muffins and 60 cookies yesterday

It is a LCM problem

Step-by-step explanation:

6 muffins together

20 cookies together

To sell the same amount of muffins and cookies,

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6 muffins = 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78

20 cookies = 40, 60, 80

The lowest common multiple of 6 muffins and 20 cookies is 60

Therefore,

They sold 60 muffins and 60 cookies yesterday

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3 years ago
Explain how the identity property in the problem, 2/3 (1) = 1 (2/3) = 2/3, is the same with any rational number. ANSWER FAST PLE
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First of all, the identity property of multiplication (which is what this is I'm assuming) is that the number 1 multiplied by any other number is that number itself. (An example would be 2 multiplied by 1, which would be two) So in this problem, this rule applies too, since 2/3 multiplied by 1 would be 2/3!

Hope this helped :)
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Plz show ur work! Ty if u do. Will give brainilest!
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Answer:

12/32 divide by 4 and get 3/8 you can’t simplify any further after that

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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