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pentagon [3]
3 years ago
13

2x+-1=3+-2x Can you show the work with it also please and hurry

Mathematics
1 answer:
jekas [21]3 years ago
6 0

Answer:

Step-by-step explanation:

2x+-1=3+-2x

2x+2x=3+1

4x=4

x=4/4

x=1

hope it helps u

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4 over x+4 - 2 over x+1
babymother [125]
(4/(x+4-2))/x+1

4/(x+2)=x/4+1/2

(x/4+1/2)/x+1

x=-2/5


7 0
3 years ago
The value of almost everything you own (assets), such as a car, computer, or house, depreciates (goes down) over time. When an a
77julia77 [94]
The two variables present here would be the value of the car, and the time is depreciates for. Time is the independent variable, because it is not affected by the value of car. Since the value of the car is a function of the time, therefore, it is the dependent variable.
5 0
4 years ago
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A small regional carrier accepted 21 reservations for a particular flight with 19 seats. 10 reservations went to regular custome
Viefleur [7K]

We have 19 available seats, and 21 reservations.

Of the 21 reservations, 10 are sure, so we have 10 out of the 19 seats that are surely occupied.

Then, we have 9 seats for 11 reservations, each one with 44% chance of being occupied.

We have to calculate the probability that the plane is overbooked. This means that more than 9 of the reservations arrive.

This can be modelled as a binomial distirbution with n = 11 and p = 0.44, representing the 44% chance.

Then, we have to calculate P(x > 9).

This can be calculated as:

P(x>9)=P(x=10)+P(x=11)

and each of the terms can be calculated as:

\begin{gathered} P(x=10)=\dbinom{11}{10}\cdot0.44^{10}\cdot0.56^1=11\cdot0.0003\cdot0.56=0.0017 \\ P(x=11)=\dbinom{11}{11}\cdot0.44^{11}\cdot0.56^0=1\cdot0.0001\cdot1=0.0001 \end{gathered}

Then:

P(x>9)=P(x=10)+P(x=11)=0.0017+0.0001=0.0018

We have a probability of 0.18% of being overbooked (P = 0.0018).

If we want to calculate the probability of having empty seats, we need to calculate P(x<9), meaning that less than 9 of the reservations arrive.

We can express this as:

P(x

We have to calculate P(x=9) as we already have calculated the other two terms:

P(x=9)=\dbinom{11}{9}\cdot0.44^9\cdot0.56^2=55\cdot0.0006\cdot0.3136=0.0107

Finally, we can calculate:

\begin{gathered} P(x

There is a probability of 0.9875 that there is one or more empty seats.

Answer:

There is a probability of 0.0018 of being overbooked.

There is a probability of 0.9875 of having at least one empty seat.

7 0
1 year ago
The product of six and a number is multiplied by nine
alex41 [277]
6 + y × 9 (the x is a times sign btw)
5 0
3 years ago
Read 2 more answers
Help please Thanks homework help
lisabon 2012 [21]

Answer:

30

Step-by-step explanation:

3x+x=4x

40+20=60

180-60=120

120/4=30

4 0
4 years ago
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