Answer:
![\pi x^2-8\pi x+16\pi](https://tex.z-dn.net/?f=%5Cpi%20x%5E2-8%5Cpi%20x%2B16%5Cpi)
Step-by-step explanation:
To find the area of the inner circle, we need to find its radius. Here, we can write the radius as 4 - x. Now, we can use the formula
:
A =
* ![(4-x)^2](https://tex.z-dn.net/?f=%284-x%29%5E2)
We can expand the square:
A = ![\pi *(16-8x+x^2)=\pi x^2-8\pi x+16\pi](https://tex.z-dn.net/?f=%5Cpi%20%2A%2816-8x%2Bx%5E2%29%3D%5Cpi%20x%5E2-8%5Cpi%20x%2B16%5Cpi)
Thus, the polynomial is
.
Hope this helps!
Answer:
y=-x^2
Step-by-step explanation:
given that y = x^2 is the function.
For equivalent to -y, we can multiply this equation both the sides by -1
We get -y = -x^2
Hence option G is right.
Also y =x^2 is a parabola with vertex at origin open up.
Hence if F is selected we get -y =(-x)^2 = x^2, this will make the parabola open down and hence this option is wrong.
H: -y=-x is wrong because this represents a line but we had original equation as that of a parabola
J) -y = x^(-2) means x^2y =-1
This implies that rate of change of y = 2/x^3 but rate of change of y has to equal 2x since y = x^2 is original. Hence only option G is right.
2) Music to my ears
3)A breeze
4)clear skies
5)worm out
6)worm out
7)sail through
Hope this helped :)
Answer:
y=x
Step-by-step explanation:
m=1 b=0
(1/1) (Rise/run) (0)(y-intercept)
y=1x+0
y=x
Do 55,427 divided by 67,103 which is 0.825998838 then multiply that by 100 to get 82.5998838 then round up to the nearest tenth to get 83 percent