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warpedkitten

  • one year ago

If f(x) = √x + 12 and g(x) = 2 √x, what is the value of (f-g)(144)?

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  1. anonymous
    • one year ago
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    \[f(x)=\sqrt{x}+12\] what is \[f(144)=\sqrt{144}+12\]?

  2. anonymous
    • one year ago
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    similarly, what is \[g(144)=2\sqrt{144}\]?

  3. warpedkitten
    • one year ago
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    No idea how to do that... @satellite73

  4. anonymous
    • one year ago
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    do you know what the square root of 144 is? that is what you need

  5. warpedkitten
    • one year ago
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    12?

  6. anonymous
    • one year ago
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    not 12? but rather 12 !!

  7. anonymous
    • one year ago
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    that makes \[f(144)=\sqrt{144}+12=12+12=?\]

  8. SolomonZelman
    • one year ago
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    satellite73, don't you first subtract g(x) from the f(x) and then plug in 144 for x?

  9. anonymous
    • one year ago
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    you can but no need right? \[f-g(144)=f(144)-g(144)\] i would compute each number, then subtract

  10. anonymous
    • one year ago
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    we have \[f(144)=24\] all we need is \(g(144)\)

  11. SolomonZelman
    • one year ago
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    Alright, not typical but actually hadier in a way. Sorry for bugging then:)

  12. anonymous
    • one year ago
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    what number is \[g(144)=2\sqrt{144}\]?

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