Answer:
–6x + 15 < 10 – 5x
An open circle is at 5 and a bold line starts at 5 and is pointing to the right.
Step-by-step explanation:
When you break down -6x + 15 < 10 - 5x, you get x > 5.
Because x is GREATER than 5, when making a number line, there is an open circle on 5 and a bold line pointing to the right.
You could just subtract the numbers from the line. It's simple.
Answer:
0
Step-by-step explanation:
From the given information;
Let x be the number of trails on which the defective occurs.
Let the probability that an occurrence of a defective be p = 0.10
Suppose x is a random variable that follows a negative binomial distribution with parameters r and p.
Then the probability mass function of X can be expressed as:
We are to find the probability of the fourth defective engine will be found on the second trial.
i.e. r = 4 and x = 2