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Type: Posts; User: Lucas

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  1. Replies
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    Using laws of exponents the initial equation can...

    Using laws of exponents the initial equation can be rewritten as

    4^4 \cdot (2^2)^4=4^{2a} \Rightarrow 4^4 \cdot 4^4=4^{2a} \Rightarrow

    4^{4+4}=4^{2a} \Rightarrow 4^8=4^{2a} \Rightarrow ...
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    In order to find the point of intersection of...

    In order to find the point of intersection of this line with the x-axis we have to plug in y=0 in the equation of the line.

    So, 2x-4(0)+24=0 \Rightarrow 2x=-24 \Rightarrow x=-12

    Therefore the...
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    2,914

    In order to find the point of intersection of...

    In order to find the point of intersection of this line with the y-axis we have to plug in x=0 in the equation of the line.
    So, 2(0)-4y+24=0 \Rightarrow 24=4y \Rightarrow y=6

    Therefore the...
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    fractions in latex

    How can I write fractions with latex?
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    2,637

    How many times should I take the SAT?

    What I've always heard is that I can only take the SAT three times. is it right??

    Thanks:D
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    2,159

    Thanks Lily!

    Thanks Lily!
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    2,159

    SAT inequality with absolute value

    SAT math inequality with absolute value

    I need help with the following inequality:

    \left\vert{} 2x-1 \right\vert{}\geqslant 5

    Thanks!!
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    2,200

    Thanks Lily!!

    Thanks Lily!!
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    2,200

    SAT math Inequalities with Absolute Value

    SAT math Inequalities with Absolute Value

    I need help with the following inequality:

    \left\vert{} 2x-1 \right\vert{}<5

    Thanks!!
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    2,324

    Thanks Elisabeth!!

    Thanks Elisabeth!!
  11. Replies
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    2,324

    SAT math Factoring

    SAT math question about Factoring

    How can I factor the following expression:

    \frac{(a-2)^2-4}{a-4}+\frac{(a+1)^2-1}{a+2}


    Thanks!!
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    2,167

    Thanks Elizabeth!!

    Thanks Elizabeth!!
  13. Replies
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    2,167

    SAT math exponents

    SAT math exponents

    How can I simplify the following exponential expression:

    \frac{4^x 4^{2x}}{4^{3x}4^3}

    Thanks!!
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    2,543

    Thanks Elizabeth!!

    Thanks Elizabeth!!
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    2,543

    SAT math exponential

    SAT math question about Exponents

    I'd like to help me to the following sat math question

    Find the value of 4^{2x}, given that 4^x=8.

    Thanks!!:D
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