All of them because they all have 3 sides
Answer:
The Answer is 113.04 which would simplify to 113
Step-by-step explanation:
3.14×6^2=113.04
A is usually true.
A convenience sample does not always represent the entire population and is not always random; therefore it does not always give reliable results. It does allow for people with stronger opinions to participate, however, so A is true.
Answer:
2
Step-by-step explanation:
In general,
.
So we have here that:
![437=21^2-x^2](https://tex.z-dn.net/?f=437%3D21%5E2-x%5E2)
![437=441-x^2](https://tex.z-dn.net/?f=437%3D441-x%5E2)
We went
by itself first.
Subtract 441 on both sides:
![437-441=-x^2](https://tex.z-dn.net/?f=437-441%3D-x%5E2)
![-4=-x^2](https://tex.z-dn.net/?f=-4%3D-x%5E2)
Multiply both sides by -1:
![4=x^2](https://tex.z-dn.net/?f=4%3Dx%5E2)
Take the square root of boht sides:
![\pm \sqrt{4}=x](https://tex.z-dn.net/?f=%5Cpm%20%5Csqrt%7B4%7D%3Dx)
![\pm 2=x](https://tex.z-dn.net/?f=%5Cpm%202%3Dx)
So both 2 and -2 would satisfy the equation.
Only one of these is a whole number.
The whole numbers consist of the elements that you can count with and 0.
The whole number set is {0,1,2,3,4,5,6,7,...}
So 2 is the answer.
Check:
Replace x with 2:
437=(21+2)(21-2)
437=(23)(19)
437=437 is a true equation so 2 is definitely a solution.
I think it is 2/3y=9x+4, forgive me if im wrong