State True or False for the Following Rational & Irrational Numbers Flashcards

Here are the flashcards quiz based on Rational & Irrational Numbers in the form of true and false. State True or False for the Following Rational & Irrational Numbers with our quiz based flashcards.

96 cards   |   Total Attempts: 190
  

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Cards In This Set

Front Back
(T/F): The square root of 80 is a rational number.
False. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 80, the square root of 80 is irrational.
(T/F): The square root of 22 is a rational number.
False. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 22, the square root of 22 is irrational.
(T/F): The square root of 3 is a rational number.
False. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 3, the square root of 3 is irrational.
(T/F): The square root of 25 is a rational number.
True. EXPLANATION: The square root of 25 is 5, which is an integer, and therefore rational.
(T/F): The square root of 9 is a rational number.
True. EXPLANATION: The square root of 9 is 3, which is an integer, and therefore rational.
(T/F): The square root of 100 is a rational number.
True. EXPLANATION: The square root of 100 is 10, which is an integer, and therefore rational.
(T/F): The square root of 5 is an irrational number.
True. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 5, the square root of 5 is irrational.
(T/F): The square root of 99 is an irrational number.
True. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 99, the square root of 99 is irrational.
(T/F): The square root of 5 is an irrational number.
True. EXPLANATION: Only perfect squares have rational square roots. Since there is no integer that can be multiplied by itself to make 5, the square root of 5 is irrational.
(T/F): The square root of 36 is an irrational number.
False. EXPLANATION: The square root of 36 is 6, which is an integer, and therefore rational.
(T/F): The square root of 49 is an irrational number.
False. EXPLANATION: The square root of 49 is 7, which is an integer, and therefore rational.
(T/F): The square root of 16 is an irrational number.
False. EXPLANATION: The square root of 16 is 4, which is an integer, and therefore rational.
(T/F): The number 85.6060606060. . . is rational.
True. EXPLANATION: A rational number has one or more digits to the right of the decimal point that repeat forever. In this case, the number 60 repeats forever, so the number is rational.
(T/F): The number 25.232232232232232. . . is rational.
True. EXPLANATION: A rational number has one or more digits to the right of the decimal point that repeat forever. In this case, the number 232 repeats forever, so the number is rational.
(T/F): The number 8.99999. . . is rational.
True. EXPLANATION: A rational number has one or more digits to the right of the decimal point that repeat forever. In this case, the number 9 repeats forever, so the number is rational.