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?
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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
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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
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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
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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.
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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
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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
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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.