Solve the Equation (NO LINKS AND ONLY IF YOU KNOW PLS)

lys-0071 [83]

Answer:

In economics, it is widely accepted that technology is the key driver of economic growth of countries, regions and cities. ... Technological progress allows for the more efficient production of more and better goods and services, which is what prosperity depends on.

i didn't know if you wanted the positive or negatives affects

4 0

2 years ago

g On a certain daily flight, Air Northeast has a policy of booking as many as 22 people on an airplane that can seat only 19. Pa

Fed [463]

Answer:

55.82% probability that there will not be enough seats available for all booked passengers.

Step-by-step explanation:

For each booked passenger, there are only two possible outcomes. Either they arrive for the flight, or they do not arrive. The probability of a booked passenger arriving is independent of other booked passengers. So we used the binomial probability distribution to solve this question.

Binomial probability distribution

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

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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

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

And p is the probability of X happening.

The airline books 22 people on a flight

This means that $n = 22$

Past studies have revealed that only 89% of the booked passengers actually arrive for the flight.

This means that $p = 0.89$

Find the probability that there will not be enough seats available for all booked passengers.

The airplane seats 19, so this is the probability of more than 19 passengers arriving.

$P(X > 19) = P(X = 20) + P(X = 21) + P(X = 22)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 20) = C_{22,20}.(0.89)^{20}.(0.11)^{2} = 0.2718$

$P(X = 21) = C_{22,21}.(0.89)^{21}.(0.11)^{1} = 0.2094$

$P(X = 22) = C_{22,22}.(0.89)^{22}.(0.11)^{0} = 0.0770$

$P(X > 19) = P(X = 20) + P(X = 21) + P(X = 22) = 0.2718 + 0.2094 + 0.0770 = 0.5582$

55.82% probability that there will not be enough seats available for all booked passengers.

7 0

2 years ago

12 square + 9 square= c square

Tanzania [10]

Answer:

21 square I think bc 9 + 12 = 21

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Factor the polynomial completely 20x -220x squared + 600x

denis23 [38]

I first would rearrange the problem

-220x^2 + 20x + 600x

Simplify

-220x^2 + 620x

Find the GCF of the two values

20x(11x + 13)

Hope this helps!

7 0

2 years ago

Translate to an algebraic expression

Nezavi [6.7K]

1)n-16
2)8n
3)1/2n + 20
4)4n - 20
5)length + width
6)r × t + 10
7)(t - x) × 5

3 0

3 years ago