QuestionIdentify the true statement:
1. is an integer.
2. 0 is neither rational nor irrational.
3. is rational but not an integer.
4. -6.175 is irrational.
Studdy Solution
STEP 1
Assumptions1. We understand the definitions of integer, rational number, and irrational number.
. An integer is a number that can be written without a fractional component.
3. A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, with the denominator q not equal to zero.
4. An irrational number is a number that cannot be expressed as a ratio of two integers.
STEP 2
First, let's evaluate the statement " is an integer". The square root of2 is a number which when multiplied by itself gives the product2.
STEP 3
Calculate the square root of2.
STEP 4
Since is not an integer, the statement " is an integer" is false.
STEP 5
Next, let's evaluate the statement "0 is neither a rational number nor an irrational number". By definition, a rational number is a number that can be expressed as a fraction p/q where p and q are integers and q is not equal to zero.
STEP 6
0 can be expressed as the fraction0/1, where0 and1 are integers and1 is not equal to zero.
STEP 7
Since0 can be expressed as a fraction, it is a rational number. Therefore, the statement "0 is neither a rational number nor an irrational number" is false.
STEP 8
Next, let's evaluate the statement " is a rational number but not an integer". The number is a repeating decimal, which can be expressed as a fraction, thus it is a rational number.
STEP 9
However, is not an integer because it has a fractional part. Therefore, the statement " is a rational number but not an integer" is true.
STEP 10
Finally, let's evaluate the statement "-6.175 is an irrational number". The number -6.175 can be expressed as a fraction -6175/1000, where -6175 and1000 are integers and1000 is not equal to zero.
STEP 11
Since -6.175 can be expressed as a fraction, it is a rational number, not an irrational number. Therefore, the statement "-6.175 is an irrational number" is false.
The only true statement is " is a rational number but not an integer".
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