For the first 60 positive integers, a = 1, n = 60, l = 60.
Sn = n/2(a + l)
s = 60/2(1 + 60) = 30(61)
For the next 60 positive integer, a = 61, n = 60, l = 120
Sum = 60/2(61 + 120) = 30(61 + 120) = 30(61) + 30(120) = s + 3600
Sum of first 120 positive integers = s + s + 3600 = 2s + 3600
the 24th term of the arithmetic is 146
I know I dislike it as well! Sorry you are having trouble with it! :)
They have the same absolute value because all opposites have the same absolut value because they both are the same distance from zero
Answer:
-opposite sides of a parallelogram are congruent.
-definition of a parallelogram
- alternate interior angles are congruent
Step-by-step explanation:
