Question

What is 0.000000028 in scientific notation

Answer 1

2.8 X 10^-8 (........characters space so that I can post this..)

Answer 2

Answer:

The answer is:

$0.000000028=2.8*10^-^8$

Step-by-step explanation:

In order to determine the answer, we have to know about scientific notation.

In general the scientific notation is:

$a*10^b$

where:

a= rational number such that its absolute value has to satisfy:

$1\leq |a|$

b= the power of 10 required so that the scientific notation is mathematically equivalent to the original number.

We have to follow the next steps to determine the scientific notation of any number:

• Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. The resulting decimal number is "a".
• Count how many places you moved the decimal point. This number is "b".
• If you moved the decimal to the left, "b" is positive. If you moved the decimal to the right, "b" is negative. If you did not need to move the decimal, "b" = 0.
• Remove trailing 0's only if they were originally to the left of the decimal point.

Finally, the number 0.000000028 written in scientific notation is:

$a=2.8\\b=-8\\\\a*10^b=2.8*10^-^8$

$0.000000028=2.8*10^-^8$