The closed formula for <span>an = an-1 – n will be found using the formula for arithmetic sequence given by:
an=a+d(n-1)
where
a=first term
d=common difference
n=number of terms
From the formula given:
a=4
d=n
thus the formula will be:
an=a+n(n-1)
an=4+n(n-1)
</span>
To estimate an answer to this problem, you must first estimate the numbers as well. 189 would round to 190, and 643 would round to 640. Now you would subtract 190 from 640, giving you 460.
Answer:
100,000
Step-by-step explanation:
The 9 is in the hundredth thousand place
Answer:
To the nearest hundredth, the rate of flow will be 75.38 mm/hr
Step-by-step explanation:
Here in this case, we are to express the rate at which the water flow and round it up to the nearest hundredth.
We are told that water flows through the pipe at a rate of 490 mm every 6.5 hours.
Now, the rate will be 490/6.5 = 75.384615384615 mm/hr
Rounding this value to the nearest hundredth, we have 75.38 mm/hr
