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vagabundo [1.1K]
3 years ago
5

What is the value of |5 - 2x |- 13 /8when

Mathematics
1 answer:
ra1l [238]3 years ago
5 0

Answer:

Use a calculator

Step-by-step explanation:

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United Flight 15 from New York's JFK airport to San Francisco uses a Boeing 757-200 with 182 seats. Because some people with res
Tcecarenko [31]

Answer:

There is a 29.27% probability that the flight is overbooked. This is not an unusually low probability. So it does seem too high so that changes must be made to make it lower.

Step-by-step explanation:

For each passenger, there are only two outcomes possible. Either they show up for the flight, or they do not show up. This means that we can solve this problem using binomial distribution probability concepts.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And \pi is the probability of X happening.

A probability is said to be unusually low if it is lower than 5%.

For this problem, we have that:

There are 200 reservations, so n = 200.

A passenger consists in a passenger not showing up. There is a .0995 probability that a passenger with a reservation will not show up for the flight. So \pi = 0.0995.

Find the probability that when 200 reservations are accepted for United Flight 15, there are more passengers showing up than there are seats available.

X is the number of passengers that do not show up. It needs to be at least 18 for the flight not being overbooked. So we want to find P(X < 18), with \pi = 0.0995, n = 200. We can use a binomial probability calculator, and we find that:

P(X < 18) = 0.2927.

There is a 29.27% probability that the flight is overbooked. This is not an unusually low probability. So it does seem too high so that changes must be made to make it lower.

5 0
2 years ago
Which angle(s) is Julian describing?
Crank
I’m sorry I can’t help you, i would need more information
6 0
3 years ago
Does anyone know 1/4 x ? = -2?
SSSSS [86.1K]

Answer:

-8

Step-by-step explanation:

1/4 x = -2

You want the value of x. x is being multiplied by 1/4. To get x alone on the left side, you need to divide both sides by 1/4. Dividing by 1/4 is the same as multiplying by 4.

Multiply both sides of the equation by 4.

4 * 1/4 x = -2 * 4

4 * 1/4 = 1, so on the left side you get 1x which is just x.

x = 8

Answer: -8

8 0
2 years ago
Read 2 more answers
FIND THE VOLUME OF THE PYRAMID!
Mars2501 [29]

Answer:

90 inches cubed

Step-by-step explanation:

The formula for the volume of a pyramid is (lwh)/3, with l=length, w=width, and h=height.

V = (lwh)/3

  = (5*3*18)/3

  = 5*18 = <u>90 inches cubed</u>

7 0
2 years ago
the cost of a telephone call 75 cents plus 25 cents times the number of minutes. write an algebraic expression that models the c
Mrrafil [7]
Since the cost of the telephone cost is 25 cents per minute, and by using the variable you provided, "t", the equation thus far is 25t=cost, or 25 multiplied by "t".

Since the telephone also charges 75 cents at the start, we just have to add it into our equation, making 75+25t=cost of telephone call in cents.

answer: 75+25t=cost of telephone call in cents
5 0
3 years ago
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