The law of cosines is
c= square root of a^2 + b^2 - 2ab cos c
the law of sines is
a = b(sin a /sin b)
Assuming there are only three colors on the spinner (black, red and white,) the probability of landing on white can be found by subtracting the probabilities for black and red from 1. This gets you 0.16, or one-sixth.
Answer:
(-1,1)(0,4)(2,7)(3,7)
Step-by-step explanation:
the arrows point from the x coordinate to the y coordinate in each in pair
Given the equation:
(1)

We need to find a, b and c. So, we know that a quadratic equation is given by:
(2)

Then, we need to order the equation (1) and to adjust it to the equation (2), so:

So, if we compare these two equations, the conclusion is:



(3)

Substituiting a, b and c into (3):

Finally, the results are two values:

The equation has no X variable so whatever that adds up to becomes the y-intercept.
- 2/9 + 1/5 >> - 10/45 + 9/45 = - 1/45
Your y-int is - 1/45 or (0, - 1/45)