Answer:
an = 1/2 (n) (n+1)
Step-by-step explanation:
1,3,6,10,.........
3-1=2
6-3=3
Each term is different so there is no common difference. It is not an arithmetic sequence
3/1=3
6/3 =2
Each term is different so there is no common ratio. It is not a geometric sequence
1 3 6 10
+2 +3 +4
a1 = 1
a2 = 3
a3 = 6 = 2*3
a4 = 10 = 2*5
Answer:
(2x +3) (4x +y)
Step-by-step explanation:
refer the image
#1 is A because the equation is pi x diameter which would be 18.84
The exact radius is
V
≈1767.15ft³
Answer:
0.35(800)=x
x=number of tickets sold in advance
Step-by-step explanation:
