Answer:
We start with the equation:
(x^2 - 1)/(x + 1) = 2
We want to rewrite this in standard form.
We can multiply both sides by (x + 1) to get:
((x^2 - 1)/(x + 1))*(x + 1) = 2*(x + 1)
x^2 - 1 = 2*(x + 1) = 2*x + 2
Now we can move all the terms to one side to get:
x^2 - 1 - 2 - 2*x = 0
x^2 - 2*x - 3 = 0
And this is a standard quadratic equation, that we can solve by using the Bhaskara's formula, this will give us the solutions:
![x = \frac{-(-2) \pm \sqrt{(-2)^2 - 4*1*(-3)} }{2*1} = \frac{2 \pm 4}{2}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B-%28-2%29%20%5Cpm%20%5Csqrt%7B%28-2%29%5E2%20-%204%2A1%2A%28-3%29%7D%20%7D%7B2%2A1%7D%20%20%3D%20%5Cfrac%7B2%20%5Cpm%204%7D%7B2%7D)
Then the two solutions are:
x = (2 + 4)/2 = 3
x = (2 - 4)/2 = -1
Hi! So It is impossible to say without knowing how long the lamp cord is. It also depends on what furniture is under the lamp: if there is a large coffee table directly under the lamp, for example, the husband is not going to be standing under the lamp!
It easy you just add all the numbers all together
Answer:
F 904.32in ^3
Step-by-step explanation:
first use find the radius, which is always half the diameter, in this case 6.
then use the formula, knowing the radius is 6
![v = 4 \div 3 \pi {r}^{3}](https://tex.z-dn.net/?f=v%20%3D%204%20%5Cdiv%203%20%5Cpi%20%7Br%7D%5E%7B3%7D%20)
the cube the radius
![{6}^{3} = 216](https://tex.z-dn.net/?f=%20%20%7B6%7D%5E%7B3%7D%20%20%3D%20216)
multiple radius by 4/3
![(4 \div 3)216 = 288](https://tex.z-dn.net/?f=%284%20%5Cdiv%203%29216%20%3D%20288)
then multiply by pi
![\pi \times 288 = 904](https://tex.z-dn.net/?f=%5Cpi%20%5Ctimes%20288%20%20%3D%20904)
Answer:
A
Step-by-step explanation:
Because 1/3 if divide into two, it'll be 0.5/3 but if the question says that the answer have to be in whole number, that means it must be 1/6.