Step-by-step explanation:
arithmetic sequence.
an = an-1 + c = a1 + (n-1)c
c is in our case 2 (every new shape has 2 more vertices).
we have a a1 = 3.
an = 3 + 2(n-1)
so,
a21 = 3 + 2(20) = 3 + 40 = 43
the 21st shadow will have 43 vertices.
Answer:
4
Step-by-step explanation:
either 22 or 4 but my money is on 4
Answer:
b) 25
c)14
Step-by-step explanation:
It is relations happy early thanksgiving
I = Prt
I = (4*1151.65)*0.033*(60/360)
I = 25.34
The interest after 60 days is 25.34.
