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solmaris [256]
3 years ago
5

Write an expression that shows how to multiply 7x256 using expanded form

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0
7(2x100)+(5x10)+(6x1)
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2.3×10⁹=(1×10³)(2.3×10^n)​
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Answer:

<em>n = 6 </em>

Step-by-step explanation:

2.3 × 10^{9} = (1 × 10³)(2.3 × 10^{n} )

(1 × 10³)(2.3 × 10^{n} ) = (1)(2.3) × (10³)( 10^{n} ) = 2.3 × 10^{3+n}

2.3 × 10^{3+n} = 2.3 × 10^{9} ⇒ 3 + n = 9 ⇒ <em>n = 6</em>

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3000

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I hope this helps! I'm also more than happy to elaborate if you want :)
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3 years ago
Fifty percent of students in your school own a bike. Of a sample of students in your school, the ratio of students who own a bik
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