Bow hello IQR is 21 + 1 -1 = 21
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:
decrease 3%
Step-by-step explanation:
sana makatulongggg
Answer:
18 people are in his class.
Step-by-step explanation:
27/8 / 3/16
27/8*16/3
Answer: 60 dollars
Step-by-step explanation:
The formula is n x 4 = p so using that formula for 15 is
15 x 4 = p
15 x 4 = 60 dollars
