donnib1 donnib1

16-11-2022
Mathematics

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Simplify (2.8 x 10-9) - (6.9 x 10-8). Write the final answer in scientific notation.
-6.62 x 10-9
-6.62 x 10-8
-4.1 x 10-1
-4.1 x 101

Respuesta :

mhanifa mhanifa

16-11-2022

Answer:

- 6.62 × 10⁻⁸

=======================

Simplify

2.8 × 10⁻⁹ - 6.9 × 10⁻⁸ =
0.28 × 10⁻⁸ - 69 × 10⁻⁹ =
(0.28 - 6.9) × 10⁻⁸ =
- 6.62 × 10⁻⁸

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