What is the quotient written in scientific notation?
2*10^21/8*10^3

A 2.5*10^6

B 2.5*10^17

C 0.25*10^18

D 0.25*10^7

Question

What is the quotient written in scientific notation? 
2*10^21/8*10^3 

A 2.5*10^6 

B 2.5*10^17 

C 0.25*10^18 

D 0.25*10^7

anonymous · Answer

Give me one moment and I'll help you ^.^

anonymous · Answer

Ok

anonymous · Answer

I think its C but I'm not sure

anonymous · Answer

The answer would end up being B.
Because, you would actually divide the numbers and just subtract the exponents. You would only subtract the exponents when you're dividing though. But when you're say, multiplying, you'd add the exponents. Make sense?

anonymous · Answer

yea
can you help me with one more?

anonymous · Answer

I don't see why not ^.^

anonymous · Answer

What is the product written in scientific notation?

(6.5*10^-7)(4*10^-17

A2.6*10^-12

B 2.6*10^-11

C 2.6*10^-10

D 2.6*10^28

anonymous · Answer

I believe it is D, but I'm honestly not 100% on that one.

anonymous · Answer

siri says its not D

anonymous · Answer

Okay, well I'm sorry I don't know this one :c

anonymous · Answer

thanks

unklerhaukus · Answer

$$(6.5\times10^{-7})(4\times10^{-17}\
=(6.5\times4)\times10^{-7-17}$$