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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?

To find the value of all variables (C) Signup and view all the answers

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

$2x + y = 7$ and $x - 2y = 3$ (C) Signup and view all the answers

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

A group of two or more atoms held together by attractive forces known as chemical bonds (C) Signup and view all the answers

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

Water (H2O) (D) Signup and view all the answers

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

Any gaseous particle regardless of its composition (D) Signup and view all the answers

Which of the following is NOT considered a molecule?

Helium (He) (A) Signup and view all the answers

Which of the following is a molecule that is homonuclear?

Hydrogen (H2) (C) Signup and view all the answers