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balu736 [363]
3 years ago
14

WILL MARK AS BRAINLIEST IF CORRECT!!!!!

SAT
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

A) 2700

Explanation:

Given:

Total number of votes is 7500

20% of the votes are invalid

80% of the votes are valid

55% of the total of valid votes were given to one of the candidates.

45% of the total of valid votes were given to the other candidate.

80% of 7500 = 6000

20% of 7500 = 1500

Let's check to see if we are correct!

6000 + 1500 = 7500

Seems like we are correct! Now, let's do the other part.

55% of 6000 =  3300

45% of 6000 =  2700

Let's check to see if we are correct!

3300 + 2700 = 6000

We are correct again! Seems like the person who got 45% of the candidates who gave valid votes got 2700! There is our answer!

Hope I helped! <3

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<h2>2.  Right answer: Aristotelian </h2>

Aristotle mistakenly thought that the Earth was the center of the universe, thus establishing a <u>geocentric cosmological model. </u>

According to this model, Aristotle proposed that the universe (the cosmos) was spherical and finite, with the Earth immobile at its center, composed of the four fundamental elements (made up of spherical layers): ground, water, air and fire; and the Sun along with the fixed planets in their respective concentric spheres revolving around the Earth. The outermost sphere being that of the stars and all these external elements being made of a fifth element which he called ether.

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3 years ago
Which type of rock is especially likely to form caves
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The picture below is limestone. That's the rock used to form caves. 

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3 years ago
Anyone available to do this?
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We are made of our dreams, our small lives are filled with sleep

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8 0
3 years ago
Who is the artist of the image above? a. Christopher wren b. Georges de la tour c. Nicolas poussin d. Antoine le nain.
Romashka-Z-Leto [24]

Georges de la tour is the artist of the image above.

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La Tour is best known for the nocturnal light effects which he developed much further than his artistic predecessors had done.

Find out more on Georges de La Tour at: brainly.com/question/2910849

6 0
2 years ago
In a study of helicopter usage and patient survival, among the 56,074 patients transported by helicopter, 235 of them
xxMikexx [17]

Using the hypergeometric distribution, it is found that the probability is 0.845 = 84.5%.

--------------------

  • The patients are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

Combination formula:

is the number of different combinations of x objects from a set of n elements, given as:

C_{n,x} = \frac{n!}{x!(n-x)!}

--------------------

  • 56074 patients, thus N = 56074
  • Sample of 40, thus, n = 40
  • 235 left against medical advice, thus, k = 235.

The probability that none left against medical advice is P(X = 0), so:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,56074,40,235) = \frac{C_{235,0}*C_{55839,40}}{C_{56074,40}} = 0.845

The probability is 0.845 = 84.5%.

A similar problem is given at brainly.com/question/24008577

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2 years ago
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