When you enter 0.0000000045 into the calculator,you get 4.5 E-9. This means
that the number is really tiny, like trying to find a needle in a haystack tiny. It's so small that if it were a mosquito, you'd need a magnifying glass just to see it. In fact, it's even smaller than the chance of me getting a date on Valentine's Day. Yep, that's pretty darn small!
4.5 E-9 is a scientific notation representation of the number 0.0000000045. The "E" in the notation stands for "times 10 to the power of." So, 4.5 E-9 means 4.5 multiplied by 10 to the power of -9. In decimal form, this is equivalent to 0.0000000045.
When you enter 0.0000000045 into a calculator, it may display the result as 4.5 E-9. This is scientific notation or exponential notation, which is a compact way of representing very small or very large numbers.
In scientific notation, the letter "E" represents "times 10 raised to the power of." So, 4.5 E-9 means 4.5 multiplied by 10 to the power of -9.
To understand this better, let's break it down:
- The number before the "E" (4.5) is called the coefficient or mantissa.
- The number after the "E" (-9) represents the exponent or power to which 10 is raised.
In this case, 4.5 E-9 means that you multiply 4.5 by 10 raised to the power of -9. To visualize this, you can shift the decimal point in 4.5 by 9 places to the left. The result is 0.0000000045, which gives you the same value.
Scientific notation is often used to conveniently express extremely large or small numbers, as it reduces the number of zeros and makes calculations easier.