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anonymous

  • one year ago

Find the area of the rectangle

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  1. anonymous
    • one year ago
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    http://curriculum.kcdistancelearning.com/courses/ALG1x-HS-A06/b/Exams/8Exam/8Exam_q40.gif

  2. SolomonZelman
    • one year ago
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    If I say the following (\(\Downarrow\)) then you will agree, right? \(\huge\color{magenta}{ \rm L }\) \(\normalsize\color{ slate }{\Huge{\bbox[5pt, lightcyan ,border:2px solid black ]{ \color{lightcyan}{\Huge\frac{~~~~~~~~\frac{~}{~~~\frac{~\frac{}{}~}{~\frac{~}{~}}~~~~}~~~}{~\frac{\frac{~}{~\frac{~\frac{}{~}}{~}}~~}{~}~~} } }}}\) \(\huge\color{darkviolet}{ \rm W }\) \(\huge\color{blue}{ \rm Area = \color{magenta}{ \rm L }\times\color{darkviolet}{ \rm W } }\)

  3. SolomonZelman
    • one year ago
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    so, same thing is here, except that your L is 4√10, and your W is 3-√10

  4. anonymous
    • one year ago
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    Mhm okay

  5. SolomonZelman
    • one year ago
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    So in this case \(\huge\color{blue}{ \rm Area = \color{magenta}{ \rm 4\sqrt{10} }\times\color{darkviolet}{ \rm \left(3-\sqrt{10}\right) } }\)

  6. SolomonZelman
    • one year ago
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    all you got to do, is to multiply this.

  7. anonymous
    • one year ago
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    Would it be 12/10-40?

  8. SolomonZelman
    • one year ago
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    no, .... how did you come up with this expression?

  9. anonymous
    • one year ago
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    4 times 3 then 4 times 10

  10. anonymous
    • one year ago
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    Then it would have to be 12/10-10 or whatever

  11. SolomonZelman
    • one year ago
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    4√10 • (3 - √10) = (4√10 • 3) - (4√10 • √10)= (12√10) - (4√100)= 12√10 - (4•10)= 12√10 - 40

  12. SolomonZelman
    • one year ago
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    I mean your question doesn't make sense because the width is negative, but...

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