Answer:
im not sure if this answer is correct but i think its 22
Answer:
The value of x is:
![x=\dfrac{5\pm \sqrt{103}i}{8}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B5%5Cpm%20%5Csqrt%7B103%7Di%7D%7B8%7D)
Step-by-step explanation:
we have to use the quadratic formula to solve for x.
The equation is given as:
![4x^2-3x+9=2x+1](https://tex.z-dn.net/?f=4x%5E2-3x%2B9%3D2x%2B1)
which could also be written as:
![4x^2-3x+9-2x-1=0\\\\4x^2-3x-2x+9-1=0\\\\\\4x^2-5x+8=0](https://tex.z-dn.net/?f=4x%5E2-3x%2B9-2x-1%3D0%5C%5C%5C%5C4x%5E2-3x-2x%2B9-1%3D0%5C%5C%5C%5C%5C%5C4x%5E2-5x%2B8%3D0)
The quadratic formula for the quadratic equation of the type:
is given as:
![x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B-b%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
Here we have:
a=4, b=-5 and c=8.
Hence, by the quadratic formula we have:
![x=\dfrac{-(-5)\pm \sqrt{(-5)^2-4\times 8\times 4}}{2\times 4}\\\\x=\dfrac{5\pm \sqrt{25-128}}{8}\\\\\\x=\dfrac{5\pm \sqrt{103}i}{8}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B-%28-5%29%5Cpm%20%5Csqrt%7B%28-5%29%5E2-4%5Ctimes%208%5Ctimes%204%7D%7D%7B2%5Ctimes%204%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B5%5Cpm%20%5Csqrt%7B25-128%7D%7D%7B8%7D%5C%5C%5C%5C%5C%5Cx%3D%5Cdfrac%7B5%5Cpm%20%5Csqrt%7B103%7Di%7D%7B8%7D)
Hence, the value of x is:
![x=\dfrac{5\pm \sqrt{103}i}{8}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B5%5Cpm%20%5Csqrt%7B103%7Di%7D%7B8%7D)
Answer:
1, 33.3
2, 81.9
3, 240
4, the farmer sold 33.3 of his crops
5, 750 students are enrolled.
Answer:
7x+2
Step-by-step explanation:
Add x+x+2x+3x to get 7 xs or 7x. Then add -4+9-7+4 to get 2. Put 7x and 2 together to get 7x+2.
Hope it helps!
Answer:
Get all the values of the histogram and put them in order:
For example 2,5,7,1,7,3 becomes 1,2,3,5,7,7 and then you get the middle number, which is in this case (3+5)/2=3.5
Then see which of the readings lie on 3.5.
Step-by-step explanation: