21 D
Question Progress
Homework Progress
61/65 Marks
b)
P(two 65) =
+
8395
First Roll
Second Roll
The probability of rolling a 6 on a
biased dice is 3
Submit Answer
6
a) Complete the tree diagram.
6
ol
not
6
b) Work out the probability of rolling
two sixes.
6
3/5
1/5
not
6
not
6
Sample Tree Diagrams
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D

Okay this was difficult but the answer is

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .