Insert 3

Insert five arithmetic progression members between -7 and 3/2.

Correct answer:

a2 =  -5.5833
a3 =  -4.1667
a4 =  -2.75
a5 =  -1.3333
a6 =  0.0833

Step-by-step explanation:

a1=7 a7=3/2=32=112=1.5  a7=a1+6d  d=(a7a1)/6=(1.5(7))/6=1712=15121.4167  a2=a1+d=(7)+1.4167=5.5833

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