Tell whether each sequence is arithmetic. Justify your answer. If the sequence is arithmetic, write a recursive formula and an e
xplicit formula to represent it.
1. 0.3, 0.9, 1.5, 2.1
2. 1, 8, 27, 64
1 answer:
Step-by-step explanation:
an arithmetic sequence is when every new term is created by adding a certain constant to the previous term.
1. is an arithmetic sequence. the constant is 0.6.
0.3 + 0.6 = 0.9
0.9 + 0.6 = 1.5
1.5 + 0.6 = 2.1
...
so, we have
a1 = 0.3
an = an-1 + 0.6
and
an = a1 + (n-1)×0.6 = 0.3 + (n-1)×0.6
2. is neither an arithmetic nor a geometric sequence.
it is simply
an = n³
You might be interested in
Answer:
16m
Step-by-step explanation:
radius is half of diameter
Answer:
84
Step-by-step explanation:
Given,
Length of the print(l) = 24 inches
Width of the print(b) = 18 inches
Perimeter of the print(P)= ?
We know,
Perimeter of the print(P) = 2(l + b)
= 2(24 + 18)
= 2(42)
=84 inches^2
Answer:
5x+25
Step-by-step explanation:
A = l*w
We know the length is 5 and the width is (x+5)
A = 5*(x+5)
Distribute
A = 5x+25
Answer:
hlchmdc,nvzmv$(5#*/'/+$-($85$(&"&("?:"?;"?;"-("?;"?-
35x5=175
175+25=200
I have 5 hours.