A swimming pool is open for 7 1/2 hours during a day. The pool keeps one lifeguard on duty at a time, and each lifeguard's shift
2 answers:
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ANSWER.
The correct answer is Option A
EXPLANATION.
The real number
to 9 decimal places.
You can see that the decimals are not repeating, neither will they terminate.
Therefore the real number is irrational because, the decimal does not terminate or repeat
Also note that,
.
That is,
is a product of two irrational numbers, which still gives an irrational number.