10 cards are numbered from 1 to 10 and placed in a box. one card selected at random and is not replaced. another card is then randomly selected. what is the probability of selecting two prime numbers?

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)