Answer:12
Step-by-step explanation:
12w
Answer:
analyzed & sketched
Step-by-step explanation:
We are given the function: y = In(x + 3)
So first we need to take the first derivative to find the interval of increase and decrease, then the second derivative to find the interval of concave up and concave down.


So it is always increasing function, and always concave down function.
Since it is a logarithmic function, x>3.
So, x = 3 is vertical asymptote.
I attached the sketch as a picture.
Answer:
$81,515
Step-by-step explanation:
10% of $47.95 is $4.795
You then multiply that by copies sold (17,000) and get the answer
5x + 4y = 8
2x - 3y = 17
(multiply the bottom equation by -2.5)
5x + 4y = 8
+
-5x + 7.5y = -42.5
—————————
(5x’s cancel out)
11.5y = -34.5
—— ———
11.5 11.5
y = -3
(Plug y in the equations to find x)
5x + 4(-3) = 8
5x - 12 = 8
5x = 20
—-
5
x = 4
(confirm using the other equation)
2(4) - 3(-3) = 17
8 + 9 = 17
17 does equal 17!