What is the converse of the following conditional statement?
if x = 12, then 2x – 5 = 19.
(a) if 2x – 5 = 19, then x = 12.
(b) if x ≠ 12, then 2x – 5 ≠ 19.
(c) if x = 12, then 2x – 5 < 19.
(d) if 2x – 5 ≠ 19, then x ≠ 12.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

Two numbers have a sum of -19. one number is x. what expression represents the other number?