Mathematics
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OpenStudy (anonymous):
Which of the following expressions is written in scientific notation?
a) 73.4 x 105
b) 0.09 × 107
c) 80 x 103
d) 4.22 x 10–3
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OpenStudy (anonymous):
Scientific notation are always express in 3 sig. fig and with decimal after first figure
OpenStudy (anonymous):
no! it's d. because, there must be only one number before point(.).
OpenStudy (anonymous):
I was just looking over my answer and it wouldn't be A because of what artix said...?
OpenStudy (anonymous):
But Thanks
OpenStudy (anonymous):
you're welcome
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OpenStudy (anonymous):
Sorry, I have one more thing i want you to look over before i submit.. Is that okay?
OpenStudy (anonymous):
yes it's okay :)
OpenStudy (anonymous):
0.0000000708 written in scientific notation is 7.08 x 10^–8?
OpenStudy (anonymous):
yes it is.
OpenStudy (anonymous):
Thank You so much .. :-)
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OpenStudy (anonymous):
you're welcome again :)
OpenStudy (anonymous):
Lol, Please don't kill me... I have one more question..
OpenStudy (anonymous):
Which expression represents the largest number?
40.1 x 10–6
4.1 x 10–7
0.411 x 10–7
0.04001 x 10–5
OpenStudy (anonymous):
ok. i'm here.
OpenStudy (anonymous):
answer is a.
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OpenStudy (anonymous):
How is A the largest?
OpenStudy (anonymous):
because
a) 40.1 x 10-6
b) 0.41 x 10-6
c) 0.0411 x 10-6
d) 0.4001 x 10-6
do you understand??
OpenStudy (anonymous):
OHH! Yes! Lol :-)
OpenStudy (anonymous):
& is 1/8000 = 8.0 x 10^3
OpenStudy (anonymous):
that's false. right one is 8.0 x 10^(-3)
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OpenStudy (anonymous):
These are the answer choices ..
8.0 x 103
1.25 x 10–4
125 x 10–5
1.25 x 104
OpenStudy (anonymous):
i was wrong. i'm so sorry. answer is 1.25 x 10-4. because 1/8=0.125
and 1/8000=1/8 x 10-3
0.125 x 10-3=1.25 x 10-4
do you understand??
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
I'm so thankful of you.
OpenStudy (anonymous):
for
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OpenStudy (anonymous):
welcome :)