Question

6,99,99,99,990 scientific notation
step step by solution​

Answer 1

Answer:

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Answer 2

Answer:

6.99 × $10^{9}$

Step-by-step explanation:

6,99,99,99,990

after 6 keep a decimal point after decimal keep the first two numbers

6.99

after decimal count the numbers after decimal so there are 9 numbers keep it as $10^{9}$ .

So , then the final answer will be

6.99 × $10^{9}$