.05/5=.5/5=1/10 so the common ratio is 1/10 and the first term is 5.
Any geometric sequence can be expressed as:
a(n)=ar^(n-1), a=initial term, r=common ratio, n=term number so this sequence is:
a(n)=5(1/10)^(n-1) (the bottom answer)
Answer:
D. w = l − 40; the width increases as the length decreases
Step-by-step explanation:
The formula for the perimeter of a rectangle =
P = 2l + 2w
Where to find the Width, we make w the subject of the formula.
Hence:
P - 2l = 2w
w = P - 2l/2
From the question, P = 80
Hence,
w = 80 - 2l/2
w = 80/2 - 2l/2
w = 40 - l
The width of a rectangle is always the longer side ,hence:
D. w = l − 40; the width increases as the length decreases
Answer:
(a)
(b)$3763.31
Step-by-step explanation:
When a Principal, P is invested at an annual rate r, for a period of k times over n years, the Amount, A(t) after n years is given by the model:
In this case:
r=1.8%
Since it is compounded bimonthly, k=2X12=24
Therefore:
For P=$2400, and n=25 years
The balance in the account after 25 years is $3763.31.