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2 years ago

A shop sells CDs. The pictogram shows information about the CDs sold.

Mathematics

1 answer:

katrin2010 [14]2 years ago

7 0

Answer:

Step-by-step explanation:

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r Flag For Review A certain city with a population of 132,000 is to be divided into 11 voting districts, and no district is to h

Alex787 [66]

Answer:

$P = \frac{132000}{12}=11000$

So then P =11000 is the minimum that the least populated district could have.

Step-by-step explanation:

We have a big total of N = 132000 for the population.

And we know that we divide this population into 11 districts

And we have this info given "no district is to have a population that is more than 10 percent greater than the population of any other district"

Let's assume that P represent our minimum value for a district in the population. The range of possible values for the population of each district would be between P and 1.1 P

The interest on this case is find the minimum value for P and in order to do this we can assume that 1 district present the minimum and the other 10 the maximum value 1.1P in order to find which value of P satisfy this condition, and we have this:

$P + 10 (1.1P) = 12 P= 132000$

$P = \frac{132000}{12}=11000$

So then P =11000 is the minimum that the least populated district could have.

3 0

2 years ago

ryan is making small meat loaves. each small meat loaf uses three fourths pound of meat. how much meat does ryan need to make ei

Tema [17]

You do three fourths times eight and that equals six.

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2 years ago

1.1 puzzle time did you hear about the trees birthday

Zigmanuir [339]

Answer:

It was a sappy one

Step-by-step explanation:

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2 years ago

A website randomly selects among 10 products to discount each day. The color printer of interest to you is discounted today. Det

Varvara68 [4.7K]

Answer:

a) P = 0.039

b) The expected number of days is 10 days.

Step-by-step explanation:

The most appropiate distribution to use in this case is the geometric distribution, in order to calculate the probability of a success after k failure trials.

The probability of success, as each of the 10 products are assumed to have fair probabilities, is:

$p=1/10=0.1$

Then, the probability that our product is not selected any given day is:

$q=1-p=1-0.1=0.9$

a) The probability that exactly this product is selected exactly 10 days from now is the probability that is not selected (probbility q) for the next 9 days and selected (probability p) at the 10th day:

$P=q^9p^1=0.9^9\cdot0.1=0.3874\cdot0.1=0.039$

b) The expected number of days is calculated as:

$E(X)=\dfrac{1}{p}=\dfrac{1}{0.1}=10$

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2 years ago

Based only on the information given in the diagram which congruence theorems or postulates could be givenas reasons why triangle

Evgesh-ka [11]

The answer is C, E, and F on Apex

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2 years ago

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