Q2 Write the following numbers in the usual form: a) 4.85 x 10⁷ b) 3.21 x10⁵ c) 3.5 x10³
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Answer:
An answer is an option (b) because it is in usual formation.
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Step-by-step explanation:
(i) Given 4.83 × 107 4.83 × 107 = 483 × 107-2 [since the decimal point is moved two places to the right]
= 483 × 105
= 4, 83, 00,000
(ii) Given 3.21 × 105 3.21 × 105 = 321 x 105-2 [since the decimal point is moved two places to the right]
= 321 x 103
= 3, 21,000
(iii) Given 3.5 × 103 3.5 × 103 = 35 x 103-1
[since the decimal point is moved one place to the right]
= 35 x 102
= 3,500
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