Linear Equations Quiz
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Questions and Answers

Which of the following is the correct definition of a system of linear equations?

  • A group of quadratic equations with two or more variables
  • A group of linear equations with two or more variables (correct)
  • A group of linear equations with one variable
  • A group of exponential equations with two or more variables

    • What is the number of unknowns in a system of two linear equations?

  • One
  • Three
  • Four
  • Two (correct)

    • How are the equations in a system of linear equations grouped together?

  • With a brace (correct)
  • With a bracket
  • With a square root symbol
  • With a fraction bar

    • What is the purpose of solving a system of linear equations?

    <p>To find the value of all variables</p> Signup and view all the answers

    Which of the following is an example of a system of two linear equations?

    <p>$2x + y = 7$ and $x - 2y = 3$</p> Signup and view all the answers

    Which of the following is the correct definition of a molecule?

    <p>A group of two or more atoms held together by attractive forces known as chemical bonds</p> Signup and view all the answers

    Which of the following is an example of a heteronuclear molecule?

    <p>Water (H2O)</p> Signup and view all the answers

    In the kinetic theory of gases, the term 'molecule' is often used for which type of particle?

    <p>Any gaseous particle regardless of its composition</p> Signup and view all the answers

    Which of the following is NOT considered a molecule?

    <p>Helium (He)</p> Signup and view all the answers

    Which of the following is a molecule that is homonuclear?

    <p>Hydrogen (H2)</p> Signup and view all the answers

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