ANSWER: 2y^2 + 13y +51 r(219/y-4)
picture explanation too:
87 numbers do not contain the digit 9
Town A starts with 2in and has a rate of accumulation of 6in every 1 hour
Town B starts with 9in and has a rate of accumulation of 3in every 1 hour
If X is number of hours then:
2+ 6X= 9+3X
6x-3x=9-2
3x=7
X=7/3 is about 2 hours
Answer:
(x + 3)/(x + 1) .
Step-by-step explanation:
2x^2 + 3x/(2x + 3)(x - 2) - 6 /x^2 - x - 2
= 2x^2 + 3x/(2x + 3)(x - 2) - 6 / (x - 2)(x + 1)
The LCM is (2x + 3)(x - 2)(x + 1) so we have
(2x^2 + 3x)(x + 1) - 6(2x + 3) x( 2x + 3)(x + 1) - 6(2x + 3)
--------------------------------------- = ------------------------------------
(2x + 3)(x - 2)(x + 1) (2x + 3)(x - 2)(x + 1)
(2x + 3)(x(x + 1) - 6) (2x + 3)(x - 2)(x + 3)
= ---------------------------- = --------------------------- = (x + 3)/(x + 1)
(2x + 3)(x - 2)(x + 1) (2x + 3)(x - 2)(x + 1)
Answer:
![\displaystyle Yes \\ Range: Set-Builder\:Notation → [f(x)|-2 ≤ f(x) ≤ 4] \\ Interval\:Notation → [-2, 4] \\ \\ Domain: Set-Builder\:Notation → [x|0 ≤ x ≤ 7] \\ Interval\:Notation → [0, 7]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20Yes%20%5C%5C%20Range%3A%20Set-Builder%5C%3ANotation%20%E2%86%92%20%5Bf%28x%29%7C-2%20%E2%89%A4%20f%28x%29%20%E2%89%A4%204%5D%20%5C%5C%20Interval%5C%3ANotation%20%E2%86%92%20%5B-2%2C%204%5D%20%5C%5C%20%5C%5C%20Domain%3A%20Set-Builder%5C%3ANotation%20%E2%86%92%20%5Bx%7C0%20%E2%89%A4%20x%20%E2%89%A4%207%5D%20%5C%5C%20Interval%5C%3ANotation%20%E2%86%92%20%5B0%2C%207%5D)
Step-by-step explanation:
Just by looking at the graph vertically and horisontally, you can tell what the range and domain is, depending on whether the segments are <em>closed</em> or <em>opened</em>.
* This is a function because it passes the <em>vertical</em><em> </em><em>line test</em>.
** This is kind of like a sine wave.
I am joyous to assist you anytime.
