4 years ago

2.55 x 10^-4 In standard form.

2 answers:

6 0

I’m afraid that it is already written in standard form.

There’s nothing you can do any further then that.

3 0

That is standard form

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Sloan [31]

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Harrizon [31]

C by counter example
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3 years ago

tekilochka [14]

Answer:

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Step-by-step explanation:

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3 years ago

Aleks [24]

145/500 can be simplified to 29/100, or 29%

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4 years ago

Pepsi [2]

Answer:

Sally is 63

Step-by-step explanation:

Represent Sally's age by x and Sam's by y.

Then x = 3y and x + y = 84.

Substituting 3y for x in the second equation, we get:

3y + y = 84, or 4y = 84, or y = 21. Since Sally is 3 times as old as Sam, we multiply 21 by 3: Sally's age is 3(21 years) = 63 years

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3 years ago