Answer:
y = -3x + 7
Step-by-step explanation:
Answer:
The sum of the first 18 terms is 270.
Step-by-step explanation:
First the 18th term is calculated which is gotten using the following steps below:
an = a1 + d ( n - 1 )
Where, an =18th term
a1= first term (-2)
d = difference
n = 18
Therefore, 18th term
an= -2 + 2 (18 - 1)
= -2 + 2 (17)
= -2 + 34
18th term = 32
To calculate the sum of the first 18th terms the following steps are used,
Sn = n(a1 + an)/2
Where,
Sn = sum of 18th term
n = 18
a1 = -2
an = 18 term
Therefore,
Sn = 18 (- 2+ 32)/2
= 18 (30)/2
= 18 ×30 /2
= 540/2
= 270
Answer:
A (0.85) for Per Mile Cost
B (19) for Initial Cost
Step-by-step explanation:
C = (Mile Cost * Miles) + Initial price
This is what they used.
We just have to understand how everything works out in the equation to get the answer. We can figure out with common sense that the initial price is 19 because it is added to the end price by its self, unmodified. You can also figure out that the mile price is what it is because its not the mile price if its not being multiplied by the miles (0.85m).
2.55135 is the decimal thing
