The number 7.8 lies between 1 and 10. So 7.8 will stay as it is and the power of will be 1 as the exponent, in this case, is zero. So 7.8 ×10⁰ is the representation in scientific notation.
What is scientific notation?
It is the type of representation to easily write and understand extremely large or extremely small numbers. For example, the number 10000000 can be written as 10⁷.
It is written as a single digit number multiplied by 10 and 10 is raised with the power of an exponent. For extremely large numbers, the exponent is positive and for extremely small numbers, the exponent is negative.
There are some rules for scientific notations. These are
The base is always 10.
The coefficient can either be positive or negative.
The absolute value of the coefficient is always greater than 1 or equal to 1.
For example -
590000000 is 5.9 × 10 ⁸
0.0000212 is 2.12 × 10 ⁻⁵
Therefore the scientific notation for 7.8 is 7.8 ×10⁰.
Read more about scientific notations, here
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