Which number(s) below would NOT in scientific notation and why? 4.5 x 10^4 6 x 10^7 12.5 x 10^3 4.2 x 10^-8 2.355 x 10^6 0.45 x

Question

OLEGan [10]

3 years ago

13

Which number(s) below would NOT in scientific notation and why? 4.5 x 10^4 6 x 10^7 12.5 x 10^3 4.2 x 10^-8 2.355 x 10^6 0.45 x

10^3

Mathematics

1 answer:

vladimir1956 [14] · Answer 1 · 2022-07-10T03:07:42+03:00

<h3>Answer:</h3>

12.5 x 10^3
0.45 x 10^3

<h3>Step-by-step explanation:</h3>

Scientific notation has exactly one non-zero digit to the left of the decimal point in the mantissa. The numbers listed above do not.

_____

<em>Comment on these numbers</em>

There may be good reasons for writing the numbers in this form. For example, in engineering, it is often useful to have the exponent be a multiple of 3. In other instances, writing the number in these forms may facilitate arithmetic. However good the reasons may be, these numbers are <em>not</em> in in the form defined as "scientific notation."