The number c is irrational. Which statement about 5−c is true?Choices:(A) 5−c is rational.(B) 5−c is irrational.(C) 5−c can be rational or irrational, depending on the value of c.
Q. The number c is irrational. Which statement about 5−c is true?Choices:(A) 5−c is rational.(B) 5−c is irrational.(C) 5−c can be rational or irrational, depending on the value of c.
Identify Number 5: Identify the nature of the number 5.5 is a rational number because it can be expressed as a fraction (15).
Consider Number c: Consider the nature of the number c.c is given as an irrational number, which means it cannot be expressed as a fraction of two integers.
Analyze Operation: Analyze the operation between a rational and an irrational number.Subtracting an irrational number from a rational number typically results in an irrational number. This is because the difference between a rational and an irrational number cannot be expressed as a fraction of two integers.
Exceptions to Typical Case: Consider exceptions to the typical case.If c were a specific irrational number such that when subtracted from 5, the result is a rational number, then 5−c could be rational. However, since c is not specified and can be any irrational number, there is no guarantee that 5−c will be rational.
Values of c: Determine if there are any values of c that would make 5−c rational.If c were 5, then 5−c would be 0, which is rational. However, since c is irrational, c cannot be 5. Therefore, there are no values of c that would make 5−c rational.
Conclude Statement: Conclude the statement about 5−c. Since there are no specific values of c given that would make 5−c rational, and the typical operation between a rational and an irrational number results in an irrational number, the statement that 5−c is irrational is true.
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