you randomly select a number from 0 to 9 and then randomly select a number 0 to 19. what is the probability of selecting a 3 both times?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?