<span>an = 4 + (n - 1)
(7)
a1 = 4 + (1-1)*7 = 4
a2 = 4 + (2-1)*7 = 4 +
<em>7
</em></span>

<span>
7 is common difference of arithmetic sequence.
</span>
Answer:
y = ±√(x-16)
Step-by-step explanation:
To find the inverse of an equation, swap the x- and y-variables:
y = x² + 16
x = y² + 16
Then, solve for the y-variable:
x = y² + 16
y² = x - 16
y = ±√(x-16)
Answer:
I believe it's 60 laps per week.
Step-by-step explanation:
you just add 12 on Monday-Friday