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Question

The standard form for 234000000 is


A

2.34×108

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B

0.234×109

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C

2.34×10-8

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D

0.234×10-9

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Solution

The correct option is A

2.34×108


Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power of 10. This form of representation is termed as the standard form.

234000000=234×1000000234000000=2.34×100×106234000000=2.34×102×106

By laws of exponent,

xm×xn=xm+n

234000000=2.34×10(2+6)234000000=2.34×108

Hence, the standard form for 234000000 is 2.34×108.


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