A.) 20, 24, 28
B.) 20, 25, 30
C.) 18, 24, 30
D.) 48, 64, 80
Find three arithmetic means between 16 and 32.?
2016-07-17 7:25 pm
回答 (3)
2016-07-17 7:33 pm
For the arithmetic sequence.
The first term, a₁ = 16
The common difference = d
The 5th term :
a₁ + 4d = 32
16 + 4d = 32
4d = 16
d = 4
a₂ = a1 + d = 20
a₃ = a1 + 2d = 24
a₄ = a1 + 3d = 28
...... The answer is: A.) 20, 24, 28
The first term, a₁ = 16
The common difference = d
The 5th term :
a₁ + 4d = 32
16 + 4d = 32
4d = 16
d = 4
a₂ = a1 + d = 20
a₃ = a1 + 2d = 24
a₄ = a1 + 3d = 28
...... The answer is: A.) 20, 24, 28
2016-07-17 7:29 pm
A
2016-07-17 7:28 pm
A
收錄日期: 2021-04-18 15:25:37
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