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Nimfa-mama [501]
3 years ago
11

More points yayayyayayayayayay

Mathematics
2 answers:
Naddik [55]3 years ago
7 0
Thanks merry Christmas to you
Evgen [1.6K]3 years ago
5 0

Answer:

free

Step-by-step explanation:

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Can someone help me with number 7 the circled one?
Ivenika [448]
Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----

x^2+x = 2x+79
x^2-x-79 = 0
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This quadratic does not have an integer solution.</span>
5 0
3 years ago
Traffic flow is traditionally modeled as a Poisson distribution.A traffic engineer monitors the traffic flowing through an inter
babymother [125]

Answer:

There is a 6.07% probability that during next 2 min exactly 5 cars passing an intersection are from state.

Step-by-step explanation:

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

In this problem, we have that:

A traffic engineer monitors the traffic flowing through an intersection with an average of 6 cars per minute. So in 2 minutes, 12 cars are expected to flow through the intersection.

If 75% of vehiclesare from state, what is the probability that during next 2 min exactly 5 cars passing an intersection are from state?

We want to know how many of these cars are from state. In 2 minutes, 0.75*12 = 9 cars from the state are expected to pass the intersection, so \mu = 9.

We want to find P(X = 2).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 5) = \frac{e^{-9}*9^{5}}{(5)!} = 0.0607

There is a 6.07% probability that during next 2 min exactly 5 cars passing an intersection are from state.

7 0
3 years ago
Which number line and equation show how to find the distance from -2 to - 5?
Lady bird [3.3K]

Answer:

  B

Step-by-step explanation:

If you're concerned with the points -2 and -5, you would be looking for a number line with those points plotted on it. The only one is ...

  number line B

6 0
2 years ago
A movie rental store charges a $6 membership fee plus $2.50 for each movie rented. What are the slope and y-intercept that repre
Olegator [25]

There searched up please be correct

8 0
3 years ago
Read 2 more answers
Help on the 2 one please!!
BARSIC [14]
Out of 15 marbles, 3 are yellow, which leaves 12 more marbles that are NOT yellow. 12/15 would be your answer

hope this helps
7 0
3 years ago
Read 2 more answers
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