Let 4ABC be inscribed in a circle with center O with AB = 13, BC = 14, AC = 15. Let the foot of the perpendicular from A to BC be D and let AO intersect BC at E. Given the length of DE can be
expressed as m
n
where m, n are relatively prime positive integers, find m + n.

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

What term makes it inconsistent y=2x - 4

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.