Given quadratic equation
![](https://tex.z-dn.net/?f=)
![x^2+6x+6=0](https://tex.z-dn.net/?f=x%5E2%2B6x%2B6%3D0)
Using the usual conventions,
a=1, b=6, c=6
Apply the quadratic formula,
![x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%5Cpm%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
substitute a,b & c with numerical values,
![x=\frac{-6\pm\sqrt{6^2-4(1)(6)}}{2(1)}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-6%5Cpm%5Csqrt%7B6%5E2-4%281%29%286%29%7D%7D%7B2%281%29%7D)
simplify:
Answer:
I feel like my answer is wrong but all of them are false
first one: it's between 0 and 5
second one: it's between 5 and 10
third one: it's between 10 and 15
but you could also say that they are all true because between the numbers they gave, they are doing what they said
<em>Hope this helps</em>
13 percent * 5 years = 65
65% of the cheetah population will be lost in 5 years.
100 percent - 65 percent = 35.
35% of the cheetah population will remain in 5 years.
I do not see how this is a high school question, it's easy.
X^2+7x-18=0
x^2+9x-2x-18=0 ( splitting middle term)
x(X+9)-2(x+9)=0
(x-2) * (X+9) =0
Therefore, X=+2 or -9
The ratio of the sides of a 30 60 90 triangle are 1 : sq root (3) : 2
So the sides are
7.4
7.4 * sq root (3) =
<span>
<span>
<span>
12.82
7.4 * 2 = 14.8
Perimeter = 7.4 + 12.82 + 14.8
</span></span></span><span><span>Perimeter </span>= 35.02
</span>