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: A and B
Explanation: If you draw the graph out it crosses the points (1,2) and (-1,-2) and those are points A and B
Hi there!
Using some simple conversions we can determine how many quarts are in 2 & a half gallons.
1 gallon = 4 quarts.
2 gallons = 8 quarts.
Since we're trying to determine how many quarts are in 2 & a half gallons we can separate our problem into how many quarts are in two gallons and how many are in a half a gallon.
2 gallons = 8 quarts.
.5 gallon = 2 quarts.
After adding this together we come up with the answer that there are 10 quarts in 2 & a half gallons. :)
5+14+12 = 31
38-31= 7
7 students play neither the flute or piano
7/38= 18.42%
Answer:
B. They are recorded when owed
Step-by-step explanation:
Hope this helps