Answer:
The sum of first 4n terms is -10n.
Step-by-step explanation:
The formula for sum of n terms of an AP is
It is given that the sum of the first n terms of an A. P. is 2n and the sum of the first 2n terms is n.
..... (1)
..... (2)
Solve equation (1) and (2) by elimination method.
The sum of first 4n terms is
Put the value of a and d.
Therefore the sum of 4n terms is -10n.
Answer: The domain is the set of all possible x-values in the graph and the range is the set of all possible y-values in the graph. Incorrect. To determine the range, identify the set of all possible y-values in the graph. The minimum y-value on this graph is 4.
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Answer:
Partial Answer
The height of one floor is 12ft.
Step-by-step explanation:
84/7 = 12
Answer:
it is an absolute function
or more precisely
y = - I x - 1 I + 8 (shown in the screenshot)