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3 years ago

What is the meaning of the word function

Mathematics

1 answer:

otez555 [7]3 years ago

6 0

Answer:

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable). Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.

Step-by-step explanation:

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In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Furthermore, there

Elis [28]

Answer:

a) 150 pounds

b) 6.75

c) 156.25

d) 0.177

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 150 pounds

Standard Deviation, σ = 27 pounds

We are given that the distribution of weight of persons on campus is a bell shaped distribution that is a normal distribution.

a) expected value of the sample mean of their weights

$\bar{x} = \mu = 150\text{ pounds}$

b) standard deviation of the sampling distribution

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{27}{\sqrt{16}} = 6.75$

c) average weight for these 16 people will result in the total weight exceeding the weight limit of 2500 points

$\dfrac{\text{Limit}}{\text{Number of people}} = \dfrac{2500}{16} = 156.25$

d) P(sample of 16 persons on the elevator will exceed the weight limit)

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(x > 156.25)

$P( x > 156.25) = P( z > \displaystyle\frac{156.25 - 150}{6.75}) = P(z > 0.9259)$

$= 1 - P(z \leq 0.9259)$

Calculation the value from standard normal z table, we have,

$P(x > 610) = 1 - 0.823 = 0.177 = 17.7\%$

0.177 is the probability that a random sample of 16 persons on the elevator will exceed the weight limit.

3 0

3 years ago

Use a model to divide 2 ÷ 1/3

konstantin123 [22]

Answer:

the answer is 6

Step-by-step explanation: since its a whole number u gotta put a 1 underneath to make it a im proper fraction so it would look like

2/1 ÷ 1/3 well then u gotta do KFC( keep it, change it, flip it) then it would look like this 2/1 x 3/1 you would get 6/1 which is 6 if u simplifly

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3 years ago

Express 3.3.3.5.5 using exponents

nadya68 [22]

I assume you mean 3*3*3*5*5 it would be 3^3 times 5^2. thats as simplified as i can make it. hope this helps! if anyone knows a better way to put these please post.

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3 years ago

someone in a car going past you at the speed of 41 m/s drops a small rock from a height of 1.6 m . How far from the point of the

Naya [18.7K]

Answer:

please mark my brain list answer