The value of x in the expressed scientific notation is;
x = -7
We are given the number 0.000000675.
Now, when writing decimals like this, it means a number has been divided by an exponent of 10.
For example; 0.01 is 1/100.
This means we start counting from the the decimal point of the whole number we want to use to the left. The number of counts we make till the end will be the exponent of 10.
Now, in our question, counting to the left from between 6 and 7 gives us 7.
Thus; we have;
6.75/10⁷
But in our question, multiplication is used and not division.
Thus, we have;
6.75 × 1/10⁷
⇒ 6.75 × 10⁻⁷
Comparing with the question gives;
x = -7
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