Answer:
The value of the Rational expression when
is: ![-7](https://tex.z-dn.net/?f=-7)
Step-by-step explanation:
For this exercise is important to remember:
- When a negative number is raised to an even power, the result will be positive.
- The multiplication of signs:
![(+)(+)=+\\(-)(-)=+\\(-)(+)=-](https://tex.z-dn.net/?f=%28%2B%29%28%2B%29%3D%2B%5C%5C%28-%29%28-%29%3D%2B%5C%5C%28-%29%28%2B%29%3D-)
Then, given the following Rational expression:
![\frac{2x^2+5x+9}{x^2+2x-1}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B5x%2B9%7D%7Bx%5E2%2B2x-1%7D)
You need to follow these steps in order to find its value when
:
1. Substitute the given value of "x" (
) into the expression:
![\frac{2(-2)^2+5(-2)+9}{(-2)^2+2(-2)-1}](https://tex.z-dn.net/?f=%5Cfrac%7B2%28-2%29%5E2%2B5%28-2%29%2B9%7D%7B%28-2%29%5E2%2B2%28-2%29-1%7D)
2. Evaluate and simplify:
![\frac{2(4)+5(-2)+9}{4+2(-2)-1}=\frac{8-10+9}{4-4-1}=\frac{7}{-1}=-7](https://tex.z-dn.net/?f=%5Cfrac%7B2%284%29%2B5%28-2%29%2B9%7D%7B4%2B2%28-2%29-1%7D%3D%5Cfrac%7B8-10%2B9%7D%7B4-4-1%7D%3D%5Cfrac%7B7%7D%7B-1%7D%3D-7)
6y + 12 = 3y - 3
Subtract 3y on both sides
3y + 12 = -3
Subtract 12 on both sides
3y = -15
Divide by 3 on both sides
y = -5
Answer:
The team sold 91 hats.
Step-by-step explanation:
$3,094 ÷ %34 = 91
Answer:
60
Step-by-step explanation:
(2x+15)=135 They're corresponding angles so they equal/congruent
<u> -15 -15</u> Subtract 15 on both sides since you're looking for x
<u>2x</u> = <u> 120</u> Bring down the remains and subtract 135 from 15
2 2 Add 2 on both sides
x= 60 Divide.
Answer:
I think B option is correct ..I m 95% sure