Answer:
3/12 and 2/12 cannot
Step-by-step explanation:
Answer:
x = 1, x = -1
Step-by-step explanation:
Given 
Use substitution
Square previous equality:
Substitute it into the equation:
Solve this quadratic equation:
Note that
then
so
Solve this equation using substitution
Thus,
![u+\dfrac{1}{u}=\dfrac{5}{2}\\ \\2u^2+2=5u\ \ [\text{Multiplied by 2u}]\\ \\2u^2-5u+2=0\\ \\D=(-5)^2-4\cdot 2\cdot 2=25-16=9\\ \\\sqrt{D}=3\\ \\u_{1,2}=\dfrac{-(-5)\pm 3}{2\cdot 2}=\dfrac{5\pm 3}{4}=2,\ \dfrac{1}{2}](https://tex.z-dn.net/?f=u%2B%5Cdfrac%7B1%7D%7Bu%7D%3D%5Cdfrac%7B5%7D%7B2%7D%5C%5C%20%5C%5C2u%5E2%2B2%3D5u%5C%20%5C%20%5B%5Ctext%7BMultiplied%20by%202u%7D%5D%5C%5C%20%5C%5C2u%5E2-5u%2B2%3D0%5C%5C%20%5C%5CD%3D%28-5%29%5E2-4%5Ccdot%202%5Ccdot%202%3D25-16%3D9%5C%5C%20%5C%5C%5Csqrt%7BD%7D%3D3%5C%5C%20%5C%5Cu_%7B1%2C2%7D%3D%5Cdfrac%7B-%28-5%29%5Cpm%203%7D%7B2%5Ccdot%202%7D%3D%5Cdfrac%7B5%5Cpm%203%7D%7B4%7D%3D2%2C%5C%20%5Cdfrac%7B1%7D%7B2%7D)
Now,
Answer:
-1.
Step-by-step explanation:
First, you find the distance from the first x coordinate to the second. This is done by doing -5 - -1 (aka -5 + 1), which equals -4. Then, you find the distance form the first y coordinate to the second. THis is done by doing 0 - -4 (aka 0 + 4), which equals 4. Then, you divide the distance of the y's over the distance of the x's, which gets you the slope, which is -1. Hope this helped!
This one is pretty easy.
x+ 4 = 7
Subtract 4 from both sides so you can isolate the x (Get the x alone)
x = 7 -4
x = 3
That's your answer. 3.
I’m not sure if this is what your looking for but x = -49
