Which list contains ONLY irrational numbers?
2 answers:
Answer:
The correct option is A.
Step-by-step explanation:
A real number is called a rational number if it can be represented as p/q, where p and q are two integers and q≠0. For example: 2,4/5, 0.2.
A real number is called an irrational number if it can not be represented as p/q, where p and q are two integers and q≠0. For example: π, √2, 2.333....
In option A, all numbers are irrational numbers.
Therefore option A is correct.
In option B,
3 is a rational numbers, so √9 is a rational number.
Therefore option B is incorrect.
In option C,
12 is a rational numbers, so √144 is a rational number.
Therefore option C is incorrect.
In option D,
11 is a rational numbers, so √121 is a rational number.
Therefore option D is incorrect.
You might be interested in
Answer:
C
Step-by-step explanation:
The volume of a cone is given by
The volume of a cylinder is given by
<em>Where h is the height and r is the radius</em>
The first figure is a cone with height 6 and radius 5, we can put it into the formula and find the volume:
The second figure is a cylinder with height 50 and radius 1, we can put it into the formula and find the volume:
We can see that they are equal. So answer choice C is right.