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3 years ago

Is 1.875 an rational or irrational number

Mathematics

2 answers:

sladkih [1.3K]3 years ago

5 0

Rational ! hope this helps :)

vazorg [7]3 years ago

5 0

Answer:

it is rational

Step-by-step explanation:

because our is a finite decimal which can be converted into a fraction

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3 years ago

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melamori03 [73]

Answer:

-5

Step-by-step explanation:

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3 years ago

It costs $7.00 to play a very simple game in which a dealer gives you one card from a deck of 52 cards. if the card is a heart,

Harlamova29_29 [7]

It costs $7.00 to play a straightforward game in which a dealer gives you one card from a deck of 52 cards. 

If the card is a heart, spade, or diamond, you lose. 

If the card is a club other than the queen of clubs, you win $11.50. 

If the card is the queen of clubs, you win $50.00. 

The random variable x represents your net gain from playing this game once, or your winnings minus the cost to play. What is the mean of x, rounded to the nearest penny?

------
Random "winnings"::.....-7.......4.50......43

Probabilities::........ 39/52....12/52....1/52 

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

u(x) = [39*-7 + 12*4.5 + 43]/52 = -$3.38

8 0

2 years ago

About 78% of the US, population claims that they visit the dentist at least once a year. simple random sample of 200 people is s

Blababa [14]

Answer:

D) 0.78, 0.029

Step-by-step explanation:

Central Limit Theorem:

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$

About 78% of the US, population claims that they visit the dentist at least once a year.

This means that $p = 0.78$

Random sample of 200 people:

This means that $n = 200$

Mean and standard deviation of the sampling distribution:

By the Central Limit Theorem

Mean $\mu = 0.78$

Standard deviation $s = \sqrt{\frac{0.78*0.22}{200}} = 0.029$

So the correct answer is given by option D.

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3 years ago

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densk [106]

Answer:

Option E

Step-by-step explanation:

The two points are (1,6) and (-3,-6) . We can find the Equation of the line using two point form , as ,

$\implies y - y_1 =\dfrac{y_2-y_1}{x_2-x_1}(x - x_1) \\\\\implies y - 6 = \dfrac{-6-6}{-3-1}(x-1) \\\\\implies y-6 = \dfrac{-12}{-4}(x-1) \\\\\implies \boxed{\boxed{y -6 = 3(x-1)}}$

On looking at options we see that option E is correct .

<h3>Hence the correct option is E. </h3>

4 0

3 years ago