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Mathematics 21 Online
OpenStudy (anonymous):

Solve Scientific Notation. http://gyazo.com/d471fb66c7cc30e3055cb77a15b7bef7

OpenStudy (destinymasha):

Let's look at the first one - 12.1 x 10^-5 x 5 x 10 ^-11 First, you need to understand what these mean

OpenStudy (destinymasha):

exponents are the numbers that tell you how many times you need to multiply the base by itself. Since its a negative, you can make the exponent positive and flip it [ 10^5 = 10000.0 , but since its negative 5 , 0.00001

OpenStudy (destinymasha):

ok,

OpenStudy (destinymasha):

1] C

OpenStudy (anonymous):

?

OpenStudy (destinymasha):

2] D

OpenStudy (destinymasha):

the first one is 6.x 10 ^-15

OpenStudy (anonymous):

3rd one is all I need. It's about to end.

OpenStudy (destinymasha):

the second one is 3.1 x 10^15

OpenStudy (destinymasha):

im sorry, i cant figure out the 3rd

OpenStudy (anonymous):

Explain how to convert nine point nine times ten to the sixth from scientific notation to standard form, then give the answer in standard form.

OpenStudy (destinymasha):

B

OpenStudy (destinymasha):

the answer was B

OpenStudy (destinymasha):

9.9 x 10^6 - first we need to multiply the base by itself 6 times, which equals 1000000. Then multiply it by 9.9 which equals 9900000. You can use a calculator

OpenStudy (destinymasha):

9900000 in scientific notation is 9.9 x 10^6 - there are 5 zeros, but you always add one more.

OpenStudy (destinymasha):

[dont add another 0, just add 1 to the number of 0's, or exponents]

OpenStudy (destinymasha):

You're probably super mad at me , sorry :{

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