2 years ago

Estimate

Mathematics

1 answer:

bixtya [17]2 years ago

5 0

Answer:

$400009 \times {10}^{8}$

Step-by-step explanation:

$(4 \times {10}^{13} ) + (9 \times {10}^{8} ) \\ \\ = (400000 \times {10}^{8} ) + (9 \times {10}^{8} ) \\ \\ = (400000 + 9) \times {10}^{8} \\ \\ = 400009 \times {10}^{8}$

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