Which of the following statements is a tautology and why is it that right answer

A. Integers are rational numbers.

B. Whole numbers are natural numbers.

C. Rational numbers are irrational.

D. Irrational numbers are integers.

What is the opposite of the opposite of 3?

What is the order of the set A = (-1,20,3,17,5) A. 3 B. 5 C. - 1, 20, 3, 17, 5 D. - 1,3, 5, 17, 20

Triangle ABC has vertices at A (3, 8), B (11, 8), and C (9, 12). Triangle FGH has vertices at F (1, 3), G (9, 3), and H (7, 7). Which sequence of transformations shows that triangle ABC and triangle FGH are congruent? Select each correct answer.

You are planning to buy a fancy sports car. there are 7 choices of wheel covers, 4

We believe around 20% of students do. how many students should be sampled?

Which of the following is the algebraic expression that best describes the height y, if x is the width? A. y=2x B. y=x-1/5 C. y=x+1/2 D. y=1/2x

Graph this equation -6x+5y=-10

W increased by 15 what is the alegretic expression'

Evaluate the expression. 13!/9!

Simplify (-125/64) ^-2/3