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Mathematics 18 Online
OpenStudy (anonymous):

What is 0.0000001 written as a power of ten? A. 10–5 B. 10–6 C. 10–7 D. 10–8

OpenStudy (anonymous):

I think the answer is c because there are 7 zeroes but can someone check it

OpenStudy (frozen15):

C is correct good job! cause see, we write 0.01 as 10^-2 because 1 is at the second digit left to ".", so in that way 0.0001 becomes 10 ^-4

OpenStudy (anonymous):

thanks!

OpenStudy (frozen15):

it is C its becomes 10-7 my bad for the 4

OpenStudy (anonymous):

did it give you a medal and thanks again

OpenStudy (frozen15):

fan me if u want n yww ::) and yes u did

OpenStudy (anonymous):

ok can help me with one more plz

OpenStudy (frozen15):

how many more is there?

OpenStudy (anonymous):

1

OpenStudy (frozen15):

ok go ahead

OpenStudy (anonymous):

What is 2.45 × 104? A. 245 B. 2450 C. 24,500 D. 245,000

OpenStudy (anonymous):

I think it is also c

OpenStudy (frozen15):

you can do this on a calculator but when I do it shows 245.8 or 245.800 so I would say C cause 500 is closer to 800 :)

OpenStudy (anonymous):

i tried it on a calculator and got exactly 24500

OpenStudy (anonymous):

and thank you again!:)

OpenStudy (frozen15):

oh I might have done is wrong and yw!

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