Practice Question and Answer

Q:

рдпрджрд┐┬а$$ {A\over2}={B\over 3}={C\over 4}$$ ┬ард╣реИ рддреЛ┬а$$ {A+B+C}\over C$$┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛?

1608 0

  • 1
    $$ {9\over2}$$
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    $$ {4\over9}$$
    Correct
    Wrong
  • 4
    $$ {9\over4}$$
    Correct
    Wrong
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Answer : 4. "$$ {9\over4}$$"

Q:

рдпрджрд┐┬а3x2 = 36 ┬ард╣реИ рддреЛ┬аx┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛?

1489 0

  • 1
    $$ {2\sqrt{3}}$$
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    $$ -{2\sqrt{3}}$$
    Correct
    Wrong
  • 4
    $$ {2\sqrt{3}}$$ or $$ -{2\sqrt{3}}$$
    Correct
    Wrong
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Answer : 4. "$$ {2\sqrt{3}}$$ or $$ -{2\sqrt{3}}$$"

Q:

13x -14= 9x+10 ┬а, x┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1621 0

  • 1
    6
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 1. "6"

Q:

$$ {ab-a-b+1}$$┬ардХрд╛ рдЧреБрдгрдирдЦрдгреНрдб рд╣реИред

1594 0

  • 1
    (a-1)(b-1)
    Correct
    Wrong
  • 2
    (a+1)(b-1)
    Correct
    Wrong
  • 3
    (a-1)(b+1)
    Correct
    Wrong
  • 4
    (a+b)(b-1)
    Correct
    Wrong
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Answer : 1. "(a-1)(b-1)"

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Answer : 2. "13"

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Answer : 2. "15 cm"

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