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calculusxy

  • one year ago

MEDAL!!! Represent the area of a triangle with a base of 2x + y and a height of 4z. A. 2z(2x + y) B. 2x( z + y) C. 2xyz D. x(2x + y) E. 2z + 4xy

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  1. imqwerty
    • one year ago
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    area of triangle = 1/2 x base x height

  2. Astrophysics
    • one year ago
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    Hint: \[A_{\triangle}=\frac{ 1 }{ 2 }bh\]

  3. Astrophysics
    • one year ago
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    qwerty@!@@#@#

  4. imqwerty
    • one year ago
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    :D lol

  5. Astrophysics
    • one year ago
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    haha

  6. calculusxy
    • one year ago
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    I know that.

  7. calculusxy
    • one year ago
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    But I was thinking about substituting the variables for some numbers.

  8. imqwerty
    • one year ago
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    base =2x+y height =4z

  9. Astrophysics
    • one year ago
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    \[A = \frac{ 1 }{ 2 }(4z)(2x+y)\]

  10. Astrophysics
    • one year ago
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    Simplify, all you had to do was plug it in

  11. imqwerty
    • one year ago
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    A=2z(2x+y)

  12. imqwerty
    • one year ago
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    do u wan the solution to that quadrilateral question @Astrophysics ??

  13. Astrophysics
    • one year ago
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    YES

  14. imqwerty
    • one year ago
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    ok

  15. imqwerty
    • one year ago
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    lemme solve it XD

  16. calculusxy
    • one year ago
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    So why did it only cancel out the 4 and not the 2. was it to only find half of from only one part (or one number).

  17. imqwerty
    • one year ago
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    ok can u tell what is 2+1??

  18. imqwerty
    • one year ago
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    m not kiddin okay answer this^

  19. MrNood
    • one year ago
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    it is half base times height OR half height times base half height = 4z/2 = 2z

  20. phi
    • one year ago
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    it works the same as \[ \frac{1}{2} \cdot 4 \cdot 8 \] you can group it like this \[ \left(\frac{1}{2} \cdot 4 \right) \cdot 8\] only the 4 *1/2 is simplified to 2 and you get 2*8 or 16 if 8 were something complicated like (x+2y) it still be \[ \left(\frac{1}{2} \cdot 4 \right) \cdot (x+2y)\]

  21. imqwerty
    • one year ago
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    we know that 2+1 = 3 nd if we find out (2+1)/2 then we can't cancel out 2 :) if u cancell it out then ur left with 1 but we know that 2+1 = 3 nd 3/2 is not 1. so u can't divide like that

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