Answer:
d
Step-by-step explanation:
look at the x and y axis
Answer:if A= [2 6] prove that (A')' = A
3 7
4 9
Step-by-step explanation:
Answer:
4/6 or 2/3
Step-by-step explanation:
1/2 of the die is odd numbers so, you would add one more number which would be 4/6 or 2/3
The conversion ratio that can be illustrated will be converting 2030m to kilometers.
<h3>How to illustrate the conversion?</h3>
The unit conversion that can be illustrated based on the information can be convert 2030m to kilometers.
It should be noted that 1000 meters makes 1 kilometer. Therefore, rounding up 2030m mentally will be 2000m and the conversion to kilometers will be:
= 2000/1000
= 2 km
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Given:
The equation is
![x^2+(2\sqrt{5})+2x=-10](https://tex.z-dn.net/?f=x%5E2%2B%282%5Csqrt%7B5%7D%29%2B2x%3D-10)
To find:
The number of roots and discriminant of the given equation.
Solution:
We have,
![x^2+(2\sqrt{5})x+2x=-10](https://tex.z-dn.net/?f=x%5E2%2B%282%5Csqrt%7B5%7D%29x%2B2x%3D-10)
The highest degree of given equation is 2. So, the number of roots is also 2.
It can be written as
![x^2+(2\sqrt{5}+2)x+10=0](https://tex.z-dn.net/?f=x%5E2%2B%282%5Csqrt%7B5%7D%2B2%29x%2B10%3D0)
Here,
.
Discriminant of the given equation is
![D=b^2-4ac](https://tex.z-dn.net/?f=D%3Db%5E2-4ac)
![D=(2\sqrt{5}+2)^2-4(1)(10)](https://tex.z-dn.net/?f=D%3D%282%5Csqrt%7B5%7D%2B2%29%5E2-4%281%29%2810%29)
![D=20+8\sqrt{5}+4-40](https://tex.z-dn.net/?f=D%3D20%2B8%5Csqrt%7B5%7D%2B4-40)
![D=8\sqrt{5}-16](https://tex.z-dn.net/?f=D%3D8%5Csqrt%7B5%7D-16)
![D\approx 1.89>0](https://tex.z-dn.net/?f=D%5Capprox%201.89%3E0)
Since discriminant is
, which is greater than 0, therefore, the given equation has two distinct real roots.