Answer:
no one of them has to be 90 degrees
Step-by-step explanation:
It's be a line that crosses the y-axis at (0,7) and has a slope of -3 or -3/1.
The value of 3ab+5b-5 is 18
Let
denote the <em>k</em>th term of the sequence. Then

where <em>d</em> is the common difference between consecutive terms in the sequence and <em>a</em>₁ is the first term.
The sum of the first <em>n</em> terms is

From the formula for
, we get




So we have
, and
so that
.
Then the <em>n</em>th term in the sequence is

Answer:
-10, -|-8|, -(-2), |-11|, 5²
Step-by-step explanation: