The explicit formula of the arithmetic sequence:
d - common difference
We have the recursive formula of an arithmetic sequence:
Therefore we have:
Substitute:
<h3>Answer: aₙ = 7 - 3n</h3>
<u>x = 8</u>
<u>y = 3</u>
x = 5y - 7
x + y + 1 = 12
Because we have a value for x, we can use it in the second equation to find the value of y.
5y - 7 + y + 1 = 12
<em><u>Combine like terms</u></em>
6y - 6 = 12
<em><u>Add 6 to both sides.</u></em>
6y = 18
<em><u>Divide both sides by 6.</u></em>
y = 3
Now that we have a value for y we can place it back in the equation to find the value of x.
x + 3 + 1 = 12
<em><u>Subtract 4 from both sides.</u></em>
x = 8
Answer: A cross section is the shape we get when cutting straight through an object.
Step-by-step explanation:
I’m pretty sure that your answer would be A: V = One-Third (6) (4) (8)
Hope this helps!!!