acunamatta
Answered

6,300,000,000 = 6.3 x 1,000,000,000
                    = 6.3 x 10 

are they both in scientific notation ??? 

Answer :

no they are not

scientific notation requires writing the ' × 10^9' part as a 10 with an exponent
allykat99
no they are not both in scientific notation 6,300,000,000 is = 6.3 x 10∧9  So therefore 6.3 x 1,000,000,000 would be the wrong answer

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