Answer:
he would need to play at least five rounds
Step-by-step explanation:
The Formula to find the Area of a circle using the radius is:
![A = \pi r^2](https://tex.z-dn.net/?f=A%20%3D%20%20%5Cpi%20r%5E2)
r = 8
So:
![A = \pi r^2](https://tex.z-dn.net/?f=A%20%3D%20%20%5Cpi%20r%5E2)
![A = \pi 8^2](https://tex.z-dn.net/?f=A%20%3D%20%20%5Cpi%208%5E2)
![A = \pi64](https://tex.z-dn.net/?f=A%20%3D%20%5Cpi64)
And you get about 201.06193
So, the area of a circle with a radius of 8 is about 201.06
Hope this Helps :)
Answer:
![1000](https://tex.z-dn.net/?f=1000)
Step-by-step explanation:
![3443-2476](https://tex.z-dn.net/?f=3443-2476)
![=967](https://tex.z-dn.net/?f=%3D967)
A quadratic equation is one in which the highest exponent of x is 2.
![7x^2+14x=0](https://tex.z-dn.net/?f=7x%5E2%2B14x%3D0)
is quadratic; the highest exponent is 2.
x³-3x²+1=0 is NOT quadratic. The highest exponent of x is 3, not 2.
5x-7=0 is NOT quadratic. The highest exponent of x is 1, not 2.
x²+3x-5=0 is quadratic; the highest exponent of x is 2.
x-5=9x+7 is NOT quadratic. The highest exponent of x is 1, not 2.
x²-x=3x+7 is quadratic; the highest exponent of x is 2.