It probably gos like this here's my answer for number 1 6/8 and 9/12. for number 3, 10/12 and 15/18.
Answer:
Number of min
Step-by-step explanation:
Hi,
Since the number of min determines our total cost, it's the independent variable.
Hope this helps :)
Answer: x
4
−
4
x
3
+
6
x
2
−
4
x
+
1
Step-by-step explanation:
Step-by-step explanation:
Geometric Sequence formula for general term:
an = a1(r^n-1)
a1 = 4 × (-5)^1-1
a1 = 4
r = -5
Summation formula for geometric sequence :
Sn = a1 ( 1 - r^n / 1 - r )
...<em>take n from the top of the summation.</em>
= 4 ( 1 -(-5)^6 / 1 -(-5)
= -10416.
