A store is instructed by corporate headquarters to put a markup of 67% on all items. An item costing $12 is displayed by the
1 answer:
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is an irrational number ⇒ answer B
Step-by-step explanation:
Let us explain the meaning of:
- A rational number is a number that can be written as a fraction
- An irrational number is a number that cannot be expressed as a fraction
Examples:
Rational numbers : 10 , , 0.333
Irrational numbers : π , √8 , ∛25 , (2 + √5) ,
∵
∵ 3 is a rational number
∴ is a rational number
∵
∵ There is no square root of 8
∴ is an irrational number
∵ 0.3333 can be expressed as
∴ 0.3333 is a rational number
∵ is a fraction
∵ All fractions are rational numbers
∴ is a rational number
is an irrational number
Learn more:
You can learn more about real numbers in brainly.com/question/4853862
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Answer:
1/2 rational exponent represents a square root.
Therefore, option A is correct.
Step-by-step explanation:
As we know that raising to the one-half power i.e. is the same
as taking the square root.
- so
is the same as the square root of
.
For example, taking the square root of 4 will determine:
so the expression becomes
∵
so, 1/2 rational exponent represents a square root.
Therefore, option A is correct.