I think it’s C if it’s wrong lmk and i can fix it
The solution to the given quadratic equation is;
x = -2 and x = 1/5
<h3>Roots of quadratic Equation </h3>
We are given the quadratic function;
(x + 2)(5x - 1) = 0
In quadratic functions, when it is expressed as;
(x + a)(x - b) = 0, what this means is that the factors of the quadratic equation or polynomial are; (x + a) and (x - b)
What that means is that the roots will be gotten from;
(x + a) = 0 and (x - b) = 0
Thus, applying the concept above on roots of a polynomial to our question, we have;
(x + 2) = 0 and 5x - 1 = 0
Solving them gives us;
x = -2 and x = 1/5
Read more on roots of quadratic equation at; brainly.com/question/8649555
Answer:
Miss, I would like to have a refund for both of my mcchickens that cost 9 dollars each. I would also like to have a refund for both of my drinks that cost 3 dollars each. They are both large. You messed up my whole meal!
Step-by-step explanation:
Answer:
a is the _amplitude_(Length of the blades)_
The vertical shift, k, is the _Mill shaft height_
![a = 15\ ft\\\\k = 40\ ft](https://tex.z-dn.net/?f=a%20%3D%2015%5C%20ft%5C%5C%5C%5Ck%20%3D%2040%5C%20ft)
![y = 15sin(\frac{\pi}{10}t) + 40](https://tex.z-dn.net/?f=y%20%3D%2015sin%28%5Cfrac%7B%5Cpi%7D%7B10%7Dt%29%20%2B%2040)
Step-by-step explanation:
In this problem the amplitude of the sinusoidal function is given by the length of the blades.
![a = 15\ ft](https://tex.z-dn.net/?f=a%20%3D%2015%5C%20ft)
The mill is 40 feet above the ground, therefore the function must be displaced 40 units up on the y axis. So:
![k = 40\ ft](https://tex.z-dn.net/?f=k%20%3D%2040%5C%20ft)
We know that the blades have an angular velocity w = 3 rotations per minute.
One rotation = ![2\pi](https://tex.z-dn.net/?f=2%5Cpi)
1 minute = 60 sec.
So:
![w = \frac{3(2\pi)}{60}\ rad/s](https://tex.z-dn.net/?f=w%20%3D%20%5Cfrac%7B3%282%5Cpi%29%7D%7B60%7D%5C%20rad%2Fs)
![w = \frac{\pi}{10}\ rad/s](https://tex.z-dn.net/?f=w%20%3D%20%5Cfrac%7B%5Cpi%7D%7B10%7D%5C%20rad%2Fs)
Finally:
a is the _amplitude_(Length of the blades)_
The vertical shift, k, is the _Mill shaft height_
![a = 15\ ft\\\\k = 40\ ft](https://tex.z-dn.net/?f=a%20%3D%2015%5C%20ft%5C%5C%5C%5Ck%20%3D%2040%5C%20ft)
![y = 15sin(\frac{\pi}{10}t) + 40](https://tex.z-dn.net/?f=y%20%3D%2015sin%28%5Cfrac%7B%5Cpi%7D%7B10%7Dt%29%20%2B%2040)