I wrote answers in picture and I use Desmos app to solve this equations
We can use quadratic formula to determine the roots of the given quadratic equation.
The quadratic formula is:
![x= \frac{-b+- \sqrt{ b^{2} -4ac} }{2a}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-b%2B-%20%5Csqrt%7B%20b%5E%7B2%7D%20-4ac%7D%20%7D%7B2a%7D%20)
b = coefficient of x term = -11
a = coefficient of squared term = 2
c = constant term = 15
Using the values, we get:
So, the correct answer to this question are option B and D
So to to get 3% of 159 you: 159x0.03=4.77
Answer 3 his car is slowing down