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Mathematics 20 Online
OpenStudy (david954954):

PLEASE HELP

OpenStudy (david954954):

OpenStudy (mertsj):

Is the number a "big" number or a "little" number?

OpenStudy (david954954):

@Mertsj Little

OpenStudy (mertsj):

"Little" numbers have negative exponents when written in scientific notation so that narrows our choices to B and D

OpenStudy (david954954):

So its B? cause theres 7 zeros.

OpenStudy (mertsj):

Notice that \[10^{-7} = 1 \times 10^{^{-7}}\] and \[10^{-6}= 1 \times 10^{-6}\]

OpenStudy (mertsj):

Where is the decimal point in the number "1" ?

OpenStudy (david954954):

No 0

OpenStudy (mertsj):

If the decimal point is not written, it is always at the end of the number so 1 is the same as 1.

OpenStudy (mertsj):

So, if you have the number 1 you would have to move the decimal point to the left to end up with .0000001

OpenStudy (mertsj):

How many places to the left would it have to be moved?

OpenStudy (david954954):

Oh so 10^-6

OpenStudy (mertsj):

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