Question

how do i solve 8E+05 * 3E+13

Answer 1

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Answer 2

okay, thank you for the help. can you help me solve this math problem?

Answer 3

Is your question
\[\huge 8^5 \times 3^{13}\]

Answer 4

yes, we are currently dealing with scientific notation, so that makes sense. how do i solve? i have a few other questions just like it and i'm super confused :/

Answer 5

Are you there?

Answer 6

Yes I'm here

Answer 7

Hold on.

Answer 8

Okay, so what is 8 times 3?

Answer 9

It should be this right?
\[\huge(8 \times 10^5) \times( 3 \times 10^{13})\]

Answer 10

hmm. im not sure. that looks right too D:

Answer 11

Lawl how are we supposed to do then? ;) Wait you've said you were in a scientific notation class right now?

Answer 12

Okay so its the second one

Answer 13

well, industry and trades. starting with scientifc notation so yes

Answer 14

Yeah so, first multiply 8 and 3

Answer 15

24

Answer 16

Okay, now, as for exponents, you'll have to add them, what is 5 plus 13?

Answer 17

18

Answer 18

Okay now you get
\[\huge 24 \times 10^{18}\]
This is not your answer, you'll have to put it in decimal coz there's 'tens', you need 'ones'
So when you decrease the number 24 to 2.4, you add 1 to the exponent, so became 19
\[\huge 2.4 \times 10^{19}\]
Done

Answer 19

thank you so much! can i ask for help on one more, a little more challenging?

Answer 20

Okay :) you can hit me with anything, I'm up till university level :p

Answer 21

haha must be nice! the next problem is 2.3E-05 / 1.15E-10

Answer 22

Okay, so now, you'll have to divide 2.3 with 1.15

Answer 23

so 2

Answer 24

Then, you've notice that its dividing, so exponents are to subtract, what is (-5)-(-10)?

Answer 25

yeah i have no idea. haha

Answer 26

Well, a minus and a minus gives a plus, so
-5-(-10) turns into -5+10
and that you get 5

Answer 27

The whole thing turns into
\[\huge 2 \times 10^5\]

Answer 28

okay. 8th grade is comin back to me now

Answer 29

This might be useful
\[(+)(+)=(+) \\ (+)(-)=(-) \\ (-)(+)=(-) \\ (-)(-)=(+)\]

Answer 30

yes it is. i remember that now. so will i then just do 20 times itself five times?

Answer 31

No don't do that, that is
\[2^5=2 \times 2 \times 2 \times 2 \times 2=32\]
If its
\[2 \times 10^5 \]
means
\[2 \times 10 \times 10\times 10\times 10\times 10=200000\]

Answer 32

oh my lord. alright thank you so much for all your help. if i have questions again how do i request you? or can i?

Answer 33

Of course c:

Answer 34

and you're welcome :)

Answer 35

Thank you! expect to hear from me soon haha! have a good day

Answer 36

good luck and have fun :)