Answer:
Piece 1: 2ft
Piece 2: 6ft
Step-by-step explanation:
x+3x=8
4x=8
x=2
So piece one is 2 feet, three times piece one is 6 feet.
Answer:
C 1,844
Step-by-step explanation:
The first five terms are found by plugging in 1, 2, 3, 4, and 5 for n.
<span>3(1) - 2 = 13(2) - 2 = 43(3) - 2 = 73(4) - 2 = 10<span>3(5) - 2 = 13 is this what u mean???
</span></span>
Answer:
Sn = 315
The sum of the first six terms of the series is 315
Completed question:
Find the sum of the first six terms of the geometric series in which a1=160, a6= 5 and r= ½
Step-by-step explanation:
The sum of a geometric series in with common ratio
r < 1 is;
Sn = a(1 - r^n)/(1-r)
Where;
r = common ratio
a = first term
n = nth term
Given;
r = 1/2
a = a1 = 160
n = 6
Substituting the values, we have;
Sn = 160(1 - (1/2)^6)/(1 - 1/2)
Sn = 315
The sum of the first six terms of the series is 315
Answer:
Step-by-step explanation:
