Answer:x - number of minutes;
f ( x ) - the distance from the finish line.
x : 0 2 4 6
f ( x ) : 3 2 1 0
f ( x ) = 3 - x/2
Answer: B ) f ( x ) = -1/2 x + 3
Step-by-step explanation:
17×2= 34
76-34= 40
2x=40
x= 20
Legth: 17
Width: 20
Answer:
y=41
Step-by-step explanation:
y= 6²+5
therefore
y=36+5
y=41
hope this was helpful. please rate brainliest
Answer:
>
Step-by-step explanation:
-27/80 > -73/80
If you make a number line they are both in the negatives. If they are both in the negatives then whatever one is closer to 0 is greater.
We can factor a polynomial by finding its roots. In particular, a quadratic equation has (at most) two roots
, which would allow us to write the polynomial as
![p(x)=a(x-x_1)(x-x_2)](https://tex.z-dn.net/?f=p%28x%29%3Da%28x-x_1%29%28x-x_2%29)
To find the solutions, we can use the quadratic formula
![x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a} = \dfrac{-5\pm\sqrt{169}}{4} = \dfrac{-5\pm13}{4}](https://tex.z-dn.net/?f=x_%7B1%2C2%7D%20%3D%20%5Cdfrac%7B-b%5Cpm%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D%20%3D%20%5Cdfrac%7B-5%5Cpm%5Csqrt%7B169%7D%7D%7B4%7D%20%3D%20%5Cdfrac%7B-5%5Cpm13%7D%7B4%7D)
So, the two solutions are
![\dfrac{-5+13}{4} = 2\quad\text{and}\quad\dfrac{-5-13}{4} =-\dfrac{9}{2}](https://tex.z-dn.net/?f=%5Cdfrac%7B-5%2B13%7D%7B4%7D%20%3D%202%5Cquad%5Ctext%7Band%7D%5Cquad%5Cdfrac%7B-5-13%7D%7B4%7D%20%3D-%5Cdfrac%7B9%7D%7B2%7D)
And so we can factor the polynomial as follows:
![2x^2+5x-18=2(x-2)\left(x+\dfrac{9}{2}\right)](https://tex.z-dn.net/?f=2x%5E2%2B5x-18%3D2%28x-2%29%5Cleft%28x%2B%5Cdfrac%7B9%7D%7B2%7D%5Cright%29)