What answer represents this number in scientific notation?
0.000000916
A. 916*10^-8
B. 9.16*10^-6
C. 916*10^8
D. 9.16*10^6
A?
Thanks
Well Anonymous,
I can tell you for sure that it is NOT A. Why? Because it's not in scientific notation.
Let's do it together.
0.000000916
Let's count our zeroes.
0.0(1)0(2)0(3)0(4)0(5)0(6)196
So, we have 6 zeroes.
We happen to be moving the decimal to the right, so the exponent is negative.
So we have 916*10^-6.
But, as I said, That ^^^ Is NOT the answer because it is not in scientific notation.
Let's put it in scientific notation. a number needs to be greater than one but less than 10 to be in scientific notation.
So, the answer is.... (drum-roll Please)
9.16*10^-6. Which is answer b.
Cheers,
Anonymous :D
Thanks alot:)
Your welcome Anonymous.
P.S. there seems to be alot of us "anonymous"s
thank you so much
heh seems we have gathered to the same place anonymous people
To determine the scientific notation representation of the number 0.000000916, we need to count the number of decimal places between the first non-zero digit and the decimal point. In this case, there are 8 decimal places.
Next, we express the number in the form of a decimal between 1 and 10 by moving the decimal point 8 places to the right. Therefore, the decimal becomes 9.16.
Finally, we write the number in scientific notation by multiplying the decimal by 10 raised to the power of the number of decimal places moved. Thus, the answer is 9.16 * 10^-8.
So, the correct answer is A. 916 * 10^-8.