Answer:
- 8050
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a + (n - 1)d
where a is the first term and d the common difference.
We require to find both a and d
Given the 9 th term is 2.5 , then
a + 8d = 2.5 → (1)
Given the sum of the second and fifth term is 27, then
a + d + a + 4d = 27, that is
2a + 5d = 27 → (2)
Multiply (1) by - 2 and add to (2) to eliminate a
- 2a - 16d = - 5 → (3)
Add (2) and (3) term by term
- 11d = 22 ( divide both sides by - 11 )
d = - 2
Substitute d = - 2 into (1) and solve for a
a - 16 = 2.5 ( add 16 to both sides )
a = 18.5
The sum to n terms of an arithmetic sequence is
= 
[ 2a + (n - 1)d ], thus
= 50 [ (2 × 18.5) + (99 × - 2) ] = 50(37 - 198) = 50(- 161) = - 8050
ANSWER
D.
The minimum value of g(x) is greater than the minimum value of f(x).
EXPLANATION
It was given that;
has a vertex at
and opens upwards.
This means that f(x) is a minimum graph and hence have a minimum value of 8.
Also ,
When we compare this function to
We can see that,a=4, h=8 and y=9.
The vertex is
Since a>0, the graph opens upwards.
The graph has a minimum point which is (8,9) and hence the minimum value is 9.
We can see that, the minimum value of g(x) is greater than the minimum value of f(x).
Therefore the correct answer is D.
The answers are:
B - Minimum Payment
B - Finance Charge
Answer:
get wut?
Step-by-step explanation:
