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Chemistry 23 Online
OpenStudy (anonymous):

I need to know the answer 4.59 x 10-5 + 7.39 x 10-4

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

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

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

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

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.

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 (abhisar):

@Somy @Katiria12 https://en.wikipedia.org/wiki/Order_of_operations

OpenStudy (somy):

>.> @Abhisar what do u get if u do this in calculator? (4.59 x 10^-5) + (7.39 x 10^-4)

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 <.<

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

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

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