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anonymous

  • one year ago

The speed of light is 3 x 105 kilometers/second. If the sun is 1.5x 108 kilometers from Earth, how many seconds does it take light to reach the Earth? Several days 0.5 seconds 45000 seconds 8 minutes and 20 seconds

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  1. anonymous
    • one year ago
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    \[c = \frac{ d }{ t } \implies t = \frac{ d }{ c }\] c is the speed of light, d is the distance of the sun from the earth, you're solving for t here :)

  2. arindameducationusc
    • one year ago
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    agree with @iambatman

  3. anonymous
    • one year ago
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    So is it 8 minutes and 20 seconds @iambatman

  4. anonymous
    • one year ago
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    That sounds right!

  5. anonymous
    • one year ago
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    Ok thanks do you think you can help with some more

  6. anonymous
    • one year ago
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    Simplify the expression 12(3 + x) – 4(5x – 6).

  7. LunyMoony
    • one year ago
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    36 + 12x - 20x - 24

  8. LunyMoony
    • one year ago
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    36 + 12x - 20x + 24

  9. LunyMoony
    • one year ago
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    Oh, if I must ... 60 - 8x

  10. LunyMoony
    • one year ago
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    *Runs and hides*

  11. LunyMoony
    • one year ago
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    *Scratches brow*

  12. anonymous
    • one year ago
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    Here's the answer choices 32x+60 -8x+12 32x+12 -8x+60

  13. LunyMoony
    • one year ago
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    Ok, so number 4?

  14. anonymous
    • one year ago
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    You need to distribute meaning multiply through, as such |dw:1440221377149:dw| I think this may be more clear.

  15. anonymous
    • one year ago
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    Now just collect like terms

  16. anonymous
    • one year ago
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    |dw:1440232258905:dw|

  17. LunyMoony
    • one year ago
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    Wow, you just stated what I stated I believe, Batman

  18. anonymous
    • one year ago
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    You're right! But we must make sure @LiveLaughDie understands how to do the problems!

  19. LunyMoony
    • one year ago
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    Don't worry about it ...give da batman a medel!

  20. LunyMoony
    • one year ago
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    Ok, now take it away

  21. anonymous
    • one year ago
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    Find the value of F, if a = 0.2.

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  22. LunyMoony
    • one year ago
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    You have a list of answers, or no? @LiveLaughDie

  23. LunyMoony
    • one year ago
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    If I am correct, then it goes like this ... 1 + 0.2 1 + 0.4 1 + 1.6 1 + 6.4 1 +45.6 Equaling ... 59.2

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