Answer:
The correct answer is x= 4/5 because you cannot take the root of a negative number
Answer:
option-D
Step-by-step explanation:
we are given
![x^2+2x+4](https://tex.z-dn.net/?f=x%5E2%2B2x%2B4)
Let's assume it is equal to 0
![x^2+2x+4=0](https://tex.z-dn.net/?f=x%5E2%2B2x%2B4%3D0)
We can use quadratic formula
Suppose, we are given quadratic equations as
![ax^2+bx+c=0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%3D0)
![x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
we can compare and find a,b and c
a=1 , b=2 , c=4
now, we can plug values
and we get
![x=\frac{-2\pm \sqrt{2^2-4\cdot \:1\cdot \:4}}{2\cdot \:1}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-2%5Cpm%20%5Csqrt%7B2%5E2-4%5Ccdot%20%5C%3A1%5Ccdot%20%5C%3A4%7D%7D%7B2%5Ccdot%20%5C%3A1%7D)
now, we can simplify it
and we get
![x=-1+\sqrt{3}i,\:x=-1-\sqrt{3}i](https://tex.z-dn.net/?f=x%3D-1%2B%5Csqrt%7B3%7Di%2C%5C%3Ax%3D-1-%5Csqrt%7B3%7Di)
Answer:
i think the answer should be 60 ft long bc that would leave 10ft on each side of the banner
Step-by-step explanation:
hope this helps
Answer:
okay it mean to means to do ur work on time and always get good grades and to get A+ and B+ and be a good student