We have points (-1,3),(0,1),(1,3) so we can set up a system of equations for the general form ax^2+bx+c...
a+b+c=3, 0a+0b+c=1, a-b+c=3 getting differences
a+b=2, -a+b=-2 getting the sum
2b=0, b=0, making a+b=2 become:
a+0=2, a=2, making a+b+c=3 become:
2+0+c=3, c=1 so
y=2x^2+1
Answer: Samantha
Step-by-step explanation: 70 miles every two hours is only 35 mph, so Samantha is faster
Answer:
![x=55](https://tex.z-dn.net/?f=x%3D55)
Step-by-step explanation:
The given equation is ![\sqrt{x-6}+3=10](https://tex.z-dn.net/?f=%5Csqrt%7Bx-6%7D%2B3%3D10)
Group similar terms to get:
![\sqrt{x-6}=10-3](https://tex.z-dn.net/?f=%5Csqrt%7Bx-6%7D%3D10-3)
![\sqrt{x-6}=7](https://tex.z-dn.net/?f=%5Csqrt%7Bx-6%7D%3D7)
Square both sides to obtain:
![x-6=7^2](https://tex.z-dn.net/?f=x-6%3D7%5E2)
![x-6=49](https://tex.z-dn.net/?f=x-6%3D49)
Add 6 to both sides
![x=49+6](https://tex.z-dn.net/?f=x%3D49%2B6)
Simplify the right hand side to obtain;
![x=55](https://tex.z-dn.net/?f=x%3D55)
I don’t see the question.
All I see is 14. M W