AP
Asked by
| 5th Oct, 2008,
08:08: PM
Expert Answer:
it grew 100cm in the first year
it grew 95 cm in the second year
it grew 90cm in the third year
a = 100 and d= -5
an= 0 = 100+(n-1) (-5)
0 = 100-5n +5
105=5n
n=21
in 21 years it will have ceased growing .
Answered by
| 5th Oct, 2008,
10:32: PM
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