Question

i) 1.3 * 10 ^ 5 - 4.9 * 10 ^ 4​

Answer 1

Answer:

$1.3 \times {10}^{5} - 4.9 \times {10}^{4}$

Step-by-step explanation:

$(1.3 \times 10 - 4.9) \times {10}^{4}$

$(13 - 4.9) \times 10000$

$8.1 \times 10000$

$81000$

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Answer 2

Answer:

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