Asked by Trish Goal
Define a#b as the arithmetic mean of a and b. What is the value of ((1#2)#2)#4? Express your answer as a common fraction.
The hashtag is just a sign. Thank you!
The hashtag is just a sign. Thank you!
Answers
Answered by
Reiny
so a#b =(a+b)/2
then
((1#2)#2)#4
= (1.5#2)#4
= 1.75#4
= 2.875
or
= 23/8
or
((1#2)#2)#4
= (3/2#2)#4
= (7/4)#4
= 23/8
then
((1#2)#2)#4
= (1.5#2)#4
= 1.75#4
= 2.875
or
= 23/8
or
((1#2)#2)#4
= (3/2#2)#4
= (7/4)#4
= 23/8
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