Answer:
A The sum of the first 11 terms is 88
Step-by-step explanation:
Since -4 - (-7) = -1 - (-4) = 2 - (-1) = 3
Your sequence is an arithmetic sequence with a common difference of 3.
The formula for the sum of an arithmetic sequence is
where ![a_{1} = the first term, a_{n} = the last term, n = the number of terms to be added, and S = the sum](https://tex.z-dn.net/?f=a_%7B1%7D%20%3D%20the%20first%20term%2C%20a_%7Bn%7D%20%20%3D%20%20the%20%20last%20%20term%2C%20n%20%3D%20the%20%20number%20%20of%20%20terms%20%20to%20%20be%20%20added%2C%20and%20S%20%3D%20the%20%20sum)
In your case
, n = 11 and ![a_{n} = a_{11}](https://tex.z-dn.net/?f=a_%7Bn%7D%20%20%3D%20%20a_%7B11%7D)
We know everything except the eleventh term.
So, we need to find the eleventh term or
=
+ (n - 1)d
= -7 + (11 - 1)3
= -7 + 30 = 23
Now, S = ![\frac{11(-7 + 23)}{2} = \frac{11(16)}{2} = 88](https://tex.z-dn.net/?f=%5Cfrac%7B11%28-7%20%2B%2023%29%7D%7B2%7D%20%20%3D%20%5Cfrac%7B11%2816%29%7D%7B2%7D%20%20%3D%2088)
The sum of the first 11 terms is 88
To find the car's total price, add the tax paid to the car's original price.
$32800 + $1968 = $34768
The total cost is $34,768
Answer:
6
Step-by-step explanation:
48 / (6 + 2)
According to BODMAS rule;
48 / 8
6
Answer:
It’s C
D
B
A
Step-by-step explanation:I just did this