Answer:
84
Step-by-step explanation:
68 + 100 = 168
168/2 = 84
Answer:
13
Step-by-step explanation:
where n is the number of terms, a1 is the first term and an is the last term. The sum of the first n terms of an arithmetic sequence is called an arithmetic series . Example 1: Find the sum of the first 20 terms of the arithmetic series if a1=5 and a20=62 .An arithmetic sequence is a sequence where the difference between any two consecutive terms is a constant. ... As with any recursive formula, the initial term of the sequence must be given. An explicit formula for an arithmetic sequence with common difference d is given by an=a1+d(n−1) a n = a 1 + d ( n − 1 ) .
Answer: 44.4%
Step-by-step explanation:
Answer:
9 in
Step-by-step explanation:
The diameter of a circle is a chord or line that passes through the center point of a circle. It's like a radius, except the line extends to the other side
Hope this helps!
JoeyHill
