What is the definition of a rational number?
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Mathematics
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A rational number is any number that can be expressed as the quotient or fraction \( \frac{a}{b} \), where \( a \) and \( b \) are integers and \( b \neq 0 \).
2.
FLASHCARD QUESTION
Front
What is the definition of an irrational number?
Back
An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as \( \frac{a}{b} \) where \( a \) and \( b \) are integers.
3.
FLASHCARD QUESTION
Front
What is the square root of a number?
Back
The square root of a number \( x \) is a value \( y \) such that \( y^2 = x \).
4.
FLASHCARD QUESTION
Front
What is the product of two square roots?
Back
The product of two square roots can be simplified as follows: \( \sqrt{a} \times \sqrt{b} = \sqrt{a \times b} \).
5.
FLASHCARD QUESTION
Front
Simplify the expression \( \sqrt{a} \times \sqrt{b} \).
Back
The simplified form is \( \sqrt{a \times b} \).
6.
FLASHCARD QUESTION
Front
What is the result of \( \sqrt{5} \times \sqrt{10} \)?
Back
The result is \( 5\sqrt{2} \).
7.
FLASHCARD QUESTION
Front
What is the definition of a polynomial?
Back
A polynomial is an expression consisting of variables, coefficients, and non-negative integer exponents, combined using addition, subtraction, and multiplication.
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