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3 years ago

I need help with number 22 plz!

Mathematics

1 answer:

tia_tia [17]3 years ago

5 0

I can't see 22 sorry

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What word has the definition of: a cost per unit

Sliva [168]

Answer:

variable and fixed costs

Step-by-step explanation:

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3 years ago

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Sarah's heart beats 2,760 times during 20

GrogVix [38]

Answer:

When Sarah is resting her heart rate is much lower.

Hope that helps :)

4 0

3 years ago

A club has 20 members, 12 boys and 8 girls. The club needs to select a president, vice-president and secretary. They decide to s

sergejj [24]

Answer:

a)2/5

b)3/5

C) 1

Step-by-step explanation:

a-8/20=2/5

b-12/20-3/5

c-12+8=20/20=1

i am not that sure about c

hope this help

6 0

3 years ago

The arrival of customers at a service desk follows a Poisson distribution. If they arrive at a rate of two every five minutes, w

vampirchik [111]

Answer:

13.53% probability that no customers arrive in a five-minute 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 time interval.

They arrive at a rate of two every five minutes

This means that $\mu = 2$

What is the probability that no customers arrive in a five-minute period?

This is P(X = 0).

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

$P(X = 0) = \frac{e^{-2}*2^{0}}{(0)!} = 0.1353$

13.53% probability that no customers arrive in a five-minute period

5 0

3 years ago

In a square, 2 sides have measure of 3x+2 and 5x - 14<br> What is the value of x

yanalaym [24]

9514 1404 393

Answer:

x = 8

Step-by-step explanation:

In a square, two sides have equal measures:

3x +2 = 5x -14

16 = 2x . . . . . . . . add 14-3x to both sides

8 = x . . . . . . . . . divide by 2

_____

The side lengths are 3(8) +2 = 26 = 5(8) -14.

3 0

3 years ago