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Mathematics 9 Online
OpenStudy (mwhit2101):

Scientific Notation to Regular Notation? What is "0.000923" in regular notation?

OpenStudy (anonymous):

i knew scientific notation like two years ago but I forgot, sorry!

OpenStudy (anonymous):

Do you mean what is that in scientific notation?

OpenStudy (anonymous):

because that is regular notation

OpenStudy (anonymous):

no that is in scientific, and it needs to be regular

OpenStudy (mwhit2101):

Yeah, @Wriddler.

OpenStudy (anonymous):

That is not scientific notation

OpenStudy (mwhit2101):

Okay, whatever. can you help?

OpenStudy (anonymous):

Yeah sure

OpenStudy (campbell_st):

the number is written in normal notation

OpenStudy (anonymous):

what is scientific notation is that isnt?

OpenStudy (mwhit2101):

No they're right. It is regular notation. I wrote it wrong

OpenStudy (mathstudent55):

Your number is already in regular notation. 0.0165 is regular notation 1.65 * 10 ^(-2) is scientific notation

OpenStudy (anonymous):

So you first want top count the zeros to know the supertext number

OpenStudy (anonymous):

so you want it in scientific?

OpenStudy (mathstudent55):

Scientific notation needs to have a number from 1 to less than 10 multiplied by an integer power of 10.

OpenStudy (mathstudent55):

Your number is 0.000923. To make that into a number from 1 to less than 10, you need 9.23 Now you need to figure out what power of 10 you need.

OpenStudy (anonymous):

Yeah, @mathstudent55 is correct, so in this case it has 4 zeros meaning the super text would be what @mwhit2101 ?

OpenStudy (mwhit2101):

The what now

OpenStudy (mwhit2101):

o.o

OpenStudy (anonymous):

(the supertext is the power that 10 is to)

OpenStudy (mwhit2101):

Oh it would be 4 then ?

OpenStudy (mathstudent55):

To go from 0.000923 to 9.23, you must move the decimal point 4 places to the right. That makes 9.23 10^4 times larger than 0.000923, so to make the number the same as 0.000923, you must have a power of -4. The answer is: \(0.000923 = 9.23 \times 10^{-4}\)

OpenStudy (anonymous):

Since it has a decimal before the actual numbers, it would be negative

OpenStudy (anonymous):

so yeah -4 meaning it would be what mathstudent said

OpenStudy (mwhit2101):

Okay, then I was right. That's what I had done. Thanks guys!

OpenStudy (anonymous):

yw

OpenStudy (anonymous):

Kevin and Randy have a jar containing 77 coins, which are all quarters or nickels. The total value of all the coins is $12.65 How many of each type of coin do they have? @just_one_last_goodbye @trinajoy

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Lucinda please take that to your own thread, you arent supposed to open new questions under another question

OpenStudy (anonymous):

why u give me a medal

OpenStudy (anonymous):

i already have it somewhere else though, i can't have two open questions at once

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