10. The three artímetic means between 8 and 100 are
A. 22, 44,88
C. 31.54.77
B. 23. 46 78
D. 42.64, 88
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10. The three artímetic means between 8 and 100 are
A. 22, 44,88
C. 31.54.77
B. 23. 46 78
D. 42.64, 88
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Answer:
letter C. 31,54,77
Step-by-step explanation:
8,_,_,_,100
100= 8+ (5-1)d
100-8=4d
92=4d
4 4
d=23
an=a1+(n-1)d
a2=8+(2-1)23
=8+(1)23
=8+23
=31
a3=8+(3-1)23
=8+(2)23
=8+46
=54
a4=8+(4-1)23
=8+(3)23
=8+69
=77