Masha will toss a fair coin thrice. If you know that the first coin toss resulted in heads and second coin resulted in tail, what would the probability be that all three coins would land on heads?

60) 9,44 : 9 -8,12 : 7=1,04889-1,16=0,11111 61) 23,68 : 3,2+1,4*1,3=7,4+1,82=9,22 62) 3,9*4,5-39,42 : 7,3=17,55-5,4=12,15 63) (7 1/3+2 1/4) : 1/4 - 30 5/6=(7 4/12+2 3/12) : 1/4 - 30 5/6=9 7/12 : 1/4 -       30 5/6=115/12*4 - 30 5/6=115/3-30 5/6= 38 4/3-30 5/6=38 8/6-30 5/6=       8 3/6=8 1/2 64) 5/12*2 3/7 + 5/12*3 4/7=5/12*(2 3/7+3 4/7)=5/12*6=5/2=2 1/2 65) -0,76- (-0,55)+ (-2,34)+9,2= -0,76+0,55-2,34+9,2= -0,21 - 2,34+9,2=       = -2,55+9,2=6,65

1) 12! 5/7-7! 1/6=5! (30/42-7/42)=5! 23/42 2) 7! 1/4-3! 7/15=7! 15/60-3! 28/60 =6! 75/60-3! 28/60=3! 47/60 3) 9! 5/12-6! 2/7=9! 35/84-6! 24/84 =3! 11/84 4) 4! 1/6-2! 4/21=4! 7/42-2! 8/42= 3! 49/42-2! 8/42=1! 41/42 5)5! 9/25- 3! 8/15=5! 27/75-3! 40/75 =4! 102/75-3! 40/75=1! 62/75 6)4! 3/35-2! 5/14=4! 6/70- 2! 25/70= 3! 76/70-2! 25/70=1! 51/70 7) 10! 3/8- 4! 2/3=10! 9/24-4! 16/24 =9! 33/24-4! 16/24=5! 17/24 8) 7! 1/16-3! 5/24=7! 3/48- 3! 10/48= =6! 51/48-3! 10/48=3! 41/48