Question

(3.14 x 10^23 ly) - (7.18 x 10^20 ly) Need Help Solving This..

Answer 1

- so for you can making this substraction you need rewriting the first expression in a form with 10^20 ,like in case of the second expression

Answer 2

ok

Answer 3

hope helped

Answer 4

yeah kinda, thanks for responding

Answer 5

can you solve it now sure ?

Answer 6

ill try im not that good in physics tho

Answer 7

can you writing here now for i can check it - ok. ?

Answer 8

3,14×10^23 = ? ×10^20 ?

Answer 9

3.14e + 43 Thas what i got

Answer 10

i dont know how you ve got this

continuing my above wrote idea

3,14×10^23 = 3140×10^20 because take the decimal 3 units on the right - yes ?

Answer 11

ohh

Answer 12

and now there are

3140,00×10^20 -
7,18×10^20

Answer 13

can you making this substraction now ?

Answer 14

yeah thanks

Answer 15

i wait it

Answer 16

please write here

Answer 17

3.13282+23

Answer 18

now bc. the ten power parts are the same so you need using the left part of

3140 - 7,18 = 3132,82

but there is again the ten part with exponent 20 so will be

3132,82×10^20 ly

Answer 19

Damn i have a test about this tomorrow, guess i am going to get a bad grade

Answer 20

i gotta do 7 more exercises about this..

Answer 21

why ? your solution is right - what you ve wrote above

looke please than we need using power of 10 of 23 so from 3132,82×10^20 we need making expression with 10 on power of 23

yes ? so just take the decimal now on the left part 3 units and will get the result what you ve wrote above

3132,82×10^20 = 3,13282×10^23

hope you understand it now sure

Answer 22

this result is exactly what you ve wrote above

Answer 23

kk

Answer 24

@SmokeyBrown

Answer 25

well thanks for the help bro, Have a good one..

Answer 26

np. was my pleasure and any time

bye bye

but do you understand it now ?

Answer 27

yeah i just need more practice thats all

Answer 28

exactly - you see it right - good work and sucesses