ANSWER
C) 1, 3, 6, 10, 15, 21, 28, 36, 45
EXPLANATION
The recursive formula is,
when n is a natural number greater than 1.
When n=2,
when n=3,
when t=4,
When t=5,
when t=6,.
when t=7
When t=8,
When t=9,
Hence the first nine triangular number are
Answer:
b.300cm
Step-by-step explanation:
Table B
Table C
Table A
Substitute by the easiest number which is 0
f(0) =2(0) - (-3) =3 Then it is Table B function
f(0) = -2(0) +(-1/3)= -1/3 Then it is Table C function
f(0) =2(0) +(2/3)=2/3 Then it is Table A function
0.8