Chemistry
23 Online
OpenStudy (anonymous):
I need to know the answer 4.59 x 10-5 + 7.39 x 10-4
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OpenStudy (somy):
are you allowed to use calculator?
OpenStudy (anonymous):
yes
OpenStudy (somy):
then write it there
write it as i do
(4.59 x 10-5) + (7.39 x 10-4)
OpenStudy (somy):
do not forget the brackets because they are very important
OpenStudy (anonymous):
but still I cannot get the result
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OpenStudy (asib1214):
or use "bedmass"
OpenStudy (asib1214):
bedmas
OpenStudy (somy):
you will get
OpenStudy (somy):
did u put brackets?
OpenStudy (somy):
10-5
means 10^-5
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OpenStudy (somy):
10-4 means 10^-4
OpenStudy (somy):
so write it in your calculator WITH brackets
and you will get the answer
OpenStudy (anonymous):
the result I get my teacher says it is not correct
OpenStudy (somy):
what are you getting
OpenStudy (asib1214):
whats the answer
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OpenStudy (anonymous):
110.8
OpenStudy (somy):
you got this by doing the way i told you?
OpenStudy (asib1214):
yep i got 110.8 with ease
OpenStudy (anonymous):
Somy yea
OpenStudy (somy):
thats wrong
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OpenStudy (somy):
7.849 *10 ^-4
this is the right answer
and this is what im getting by calculating the way i told you
OpenStudy (anonymous):
for my teacher is not correct so I don't know
OpenStudy (abhisar):
Use BODMAS
OpenStudy (somy):
@Abhisar what on earth is bodmas?
OpenStudy (abhisar):
Bracket, of, division, multiplication, addition, subtraction.
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OpenStudy (anonymous):
I got the result of this question and said it was not correct
Change this number from scientific notation to standard notation.
1.89 x 10-4
OpenStudy (somy):
<.< did you ask him if this 7.849 *10 ^-4 was correct or not
OpenStudy (abhisar):
1.89*10-4 = 0.000189
OpenStudy (somy):
>.> @Abhisar
what do u get if u do this in calculator?
(4.59 x 10^-5) + (7.39 x 10^-4)
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OpenStudy (anonymous):
Somy
yea but he didn't tell me if it is correct or not
OpenStudy (asib1214):
i got 0.0007849
OpenStudy (somy):
@Abhisar for god's sake calculate it
im getting 7.849*10^-4
OpenStudy (somy):
finally @asib1214
OpenStudy (somy):
i've been saying this like from the very beginning <.<
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OpenStudy (anonymous):
this is the answer 0.0007849 or not ?
OpenStudy (somy):
0.0007849 and 7.849*10^-4 are same thing
mine is in scientific notation
OpenStudy (somy):
it is correct
OpenStudy (anonymous):
look I feel the same with this
Change this number from standard notation to scientific notation. 22.98504
OpenStudy (abhisar):
2.298504 * 10
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OpenStudy (somy):
i told you about this one in the separate question tho
OpenStudy (somy):
@Abhisar round it scientific notations like 3 significant figures lol
OpenStudy (anonymous):
So is 22.98504