Due tomorrow i need help

Mathematics

1 answer:

Airida [17]3 years ago

7 0

Answer:

13x is your answer

Step-by-step explanation:

just add 6x + 7

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A musician plans to perform 4 selections. In how many ways can she arrange the musical selections?

kari74 [83]

Answer:

The answer is 24 in my opinion

Step-by-step explanation:

1)1 2 3 4

2)1 2 4 3

3)1 3 2 4

4)1 3 4 2

5)1 4 3 2

6)1 4 2 3

Just multiply the 4 with 6 then you get the answer. Hope this is correct.

4 0

3 years ago

Read 2 more answers

Sally has two pieces of fabric that are 128 inches long. She needs to cut each piece of fabric into multiple pieces that are 6 i

Alborosie

42 pieces. Add 128+128=256, then divide that by 6 which is 42.6, and you have 42 pieces (complete pieces, but if it doesn’t ask for complete pieces then your answer is 42.6)

3 0

3 years ago

A Geiger counter counts the number of alpha particles from radioactive material. Over a long period of time, an average of 14 pa

UkoKoshka [18]

Answer:

0.2081 = 20.81% probability that at least one particle arrives in a particular one second period.

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 interval.

Over a long period of time, an average of 14 particles per minute occurs. Assume the arrival of particles at the counter follows a Poisson distribution. Find the probability that at least one particle arrives in a particular one second period.

Each minute has 60 seconds, so $\mu = \frac{14}{60} = 0.2333$