Write an expression for the sequence of operations described below. double r, then raise the result to the 8th power Do not simp
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First find the x and y values because where the lines will intersect, they share the point of the intersection so they will share the x and y coordinates.
Rearrange equations
To cancel y, we must do equation 1 minus equation 2. Similarly:
So the x coordinate is 3.
The y coordinate can be found with substitution of x into one of the equations:
So where the two lines intersect is at the point (3, 7), which is the solution to the equations.
This kind of problems are solved using Bernoulli's distribution. Everytime you have a win/lose scenario, and you know the probability of winning, and you want
successes over
trials, you have the following probability:
You want the probability of having at least three successes, i.e. you are interested in the cases k=3 and k=4. The corresponding probabilities are
So, the total probability is