The summation symbol means we use the variable i in the equation from the given range. In this case, we are given with the equation 3 i - 15 and i ranges from 2 to 7. The summation using simply the calculator is equal to -9. The answer to this problem is -9.
Answer:
7x + 20
I hope I helped :D
Step-by-step explanation:
A= 360
B= 2(12)²(7)/120= 2016/120=16.8
Summaation of a sequence
or see a smaller scale
from 1 to 10
notice
1+10=11
2+9=11
etc
5+6=11
10/2=5
there are 5 pairs
5*11=55
so
1 to 100
1+100=101
2+99=101
...
50+51=101
100/2=50
there ar 50 pairs
50 times 101=5050
the sum is 5050
Answer: The evidence from the story is base of the new church in this period and the first child to be a part in church and church of the church
Step-by-step explanation:
