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Mathematics 8 Online
OpenStudy (lieutenantgeneral):

What is 16,700,000,000,000,000 estimated as the product of a single digit and a power of 10?

OpenStudy (lieutenantgeneral):

2x10^16 2x10^15 1x10^15 1x10^16

OpenStudy (anonymous):

1.67x10^16

OpenStudy (lieutenantgeneral):

so it's 1x10^16

OpenStudy (anonymous):

the answer would be a if you are going to round it, you have to round up

OpenStudy (lieutenantgeneral):

so 2x10^16

OpenStudy (anonymous):

yeah

OpenStudy (lieutenantgeneral):

r u good with english

OpenStudy (lieutenantgeneral):

What is 0.00000000472 estimated as the product of a single digit and a power of 10?

OpenStudy (anonymous):

4.72x10^-9

OpenStudy (lieutenantgeneral):

wha is it estimated

OpenStudy (lieutenantgeneral):

5

OpenStudy (anonymous):

yeah

OpenStudy (lieutenantgeneral):

where do u get ur ansers from

OpenStudy (anonymous):

its simple i just look at it. you count how many decimal places you are moving and thats your power.

OpenStudy (lieutenantgeneral):

k Which numbers are greater than 7 × 10−4? Choose all answers that are correct. A. 8 × 10−4 B. 9 × 10−5 C. 4 × 10−4 D. 3 × 10−2 E. 7 × 10−5

OpenStudy (anonymous):

a and b. what grade r u in ?

OpenStudy (lieutenantgeneral):

8th

OpenStudy (lieutenantgeneral):

What is the best order-of-magnitude estimate for 789,000? A. 10^7 B. 10^6 C. 10^5 D. 10^4

OpenStudy (lieutenantgeneral):

I think it's c

OpenStudy (anonymous):

not 100% sure but i think it might be a i never had to do that i skipped eighth grade math.

OpenStudy (lieutenantgeneral):

do u have skype

OpenStudy (anonymous):

kik me cheese809

OpenStudy (lieutenantgeneral):

What is the best order-of-magnitude estimate for 0.00003? A. 10^-3 B. 10^-4 C. 10^-5 D. 10^-6

OpenStudy (lieutenantgeneral):

u cant do this either?

OpenStudy (anonymous):

c

OpenStudy (lieutenantgeneral):

ty

OpenStudy (lieutenantgeneral):

r u good at english

OpenStudy (anonymous):

depends on the question

OpenStudy (lieutenantgeneral):

it's run on's

OpenStudy (anonymous):

more or less

OpenStudy (lieutenantgeneral):

so u no how

OpenStudy (anonymous):

i mean its not that hard but i can guarantee you ill get all the punctuation.

OpenStudy (lieutenantgeneral):

can I post it in the math section

OpenStudy (anonymous):

you should give me a medal just posy it in the english section and send me the link.

OpenStudy (lieutenantgeneral):

http://openstudy.com/study#/updates/53ee3840e4b01789aba5e371

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