S=n(a1+an)/2 gives the partial sum of an arithmetic sequence. What is the formula solved for an?
2 answers:
You might be interested in
Answer:
<h2>$1,280</h2>Step-by-step explanation:
Since the rate is constant, we can do the following method.
= $160 is saved per week.
Now, multiply the amount of money for 1 week by 8.
$160 × 8 = $1,280
<em>I hope this helps! I would really appreciate it if you would please make me brainliest! Have a blessed day!</em>
<em />
<h3>Answer: 1.3</h3>
========================================
Work Shown:
The two points we have are and
Apply the distance formula
-------------------------
A shortcut is possible by subtracting the y coordinates of the two points, and making the result positive through the use of absolute value.
So we either say
|y1-y2| = |1.2-2.5| = |-1.3| = 1.3
or,
|y2 - y1| = |2.5 - 1.2| = |1.3| = 1.3
We get the same result. This shortcut is valid because the x coordinates of both points are the same.