Answer:
The reason for the decreasing sequence is 
the sum of the sequence is -243
Step-by-step explanation:
Note that the numbers are decreasing so we will use the following formula to find the sum:
S∞=
,
where t1 is equal to the first number of the sequence and q is the reason that gives the following results.
to find q this form is used;
q= 
then we replace in the formula of the sum to find the total
Answer:
See attachment for graph
Step-by-step explanation:
Given
Required
The graph of the equation
First, we determine the range of y
<em>See attachment for graph</em>
Answer:
-9
Step-by-step explanation:
the first number
hope it is well understood
<span>C) (3, 5) i hope that help </span>
The sequence would be written as:
1.2, 0.84, 0.588, 0.4116
If this is a geometric sequence, then they should have a common ratio. We determine as follows:
0.4116 / 0.588 = 0.7
0.588 / 0.84 = 0.7
0.84 / 1.2 = 0.7
r = 0.7
an = a1(r^(n-1))
an = 1.2 (0.7^(5-1))
an = 0.28812 <--------option A
