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Mathematics 16 Online
OpenStudy (anonymous):

I need help! (Question Below)

OpenStudy (anonymous):

\[(4.87\times 10^{10}) - (7.7 \times 10^{9})\]

OpenStudy (anonymous):

Anybody...

OpenStudy (anonymous):

I don't understand this equation.

OpenStudy (anonymous):

4.1x10 to the 10

OpenStudy (anonymous):

mflow24, that's the answer ?

OpenStudy (anonymous):

yes. i just did it on my calculator. the (to the) is the exponent for the last 10 because i dont know how to do exponents on this computer

OpenStudy (anonymous):

What about \[5^{4} \times 5^{4}\]

OpenStudy (anonymous):

idk.... i just did it on my scientific calculator and came up with that answer

OpenStudy (anonymous):

Ok, so 10^10 is basically 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10. Same with 10^9. 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10. So, you basically take that, and add the number of 0s, so it's (4.87 x 10,000,000,000) - (7.7 x 1,000,000,000). Then, you take the 4.87 (or 7.7) and replace the first numbers of the number with them (making it 4,8700,000,000 - 7,700,000,000, which equals 41,000,000,000 or 4.1 * 10^9.

OpenStudy (anonymous):

it would be to the tenth power

OpenStudy (anonymous):

Oh, sorry. XP

OpenStudy (anonymous):

(makes edit in invisible ink)

OpenStudy (anonymous):

4.1*10^10

OpenStudy (anonymous):

What about ...\[(7.8 \times 10^{2}) \times ( 4 \times \times 10^{6})\]

OpenStudy (anonymous):

There just has to be one x not two

OpenStudy (anonymous):

5^4*5^4= 1 9/16

OpenStudy (anonymous):

Oh ok

OpenStudy (anonymous):

What about the other equation?

OpenStudy (anonymous):

1.56*10^8

OpenStudy (anonymous):

156000000

OpenStudy (anonymous):

Oh ok

OpenStudy (anonymous):

What about....

OpenStudy (anonymous):

\[(x ^{2})^{6} \div x ^{12}\]

OpenStudy (anonymous):

x^4???????????????????????????????

OpenStudy (anonymous):

idk...

OpenStudy (anonymous):

oh...

OpenStudy (anonymous):

i think im right though....

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