Can there be a time-temperature graph as follows?Justify your answer.

State whether the following statements are true or false. Justify your answers. (i) All hexagons are polygons.

State whether the following statements are true or false. Justify your answers. (iv) Some real numbers are irrational.

State whether the following statements are true or false. Justify your answers. (vi) All real numbers are irrational.

State whether the following statements are true or false. Justify your answers. (iii) Not all even numbers are divisible by 2.

State whether the following statements are true or false. Justify your answers. (ii) Some polygons are pentagons.

State whether the following statements are true or false. Justify your answers. (iii) Every real number need not be a rational number

State whether the following statements are true or false. Justify your answers. (iv) n is not irrational if n is a perfect square.

State whether the following statements are true or false. Justify your answers. (v) sqrtn is irrational if n is not a perfect square.

State whether the following statements are true or false. Justify your answers. (i) Every irrational number is a real number.

State whether the following statements are true or false. Justify your answers. (ii) Every rational number is a real number.