Question

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Answer 1

3.5 x
`10^(2)`

Explanation:

Multiply the numeric values times each other and add the exponents:

(3.2 x 1.1) x (
`10^(-7)` x
`10^(9)`)

3.52 x
`10^(2)`

To one significant figure: 3.5 x
`10^(2)`

Answer 2

Answer: 3,52 x 10²

Explanation: