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3 years ago

-4/5, -1/2, 0.25, -0.2 least to greatest

Mathematics

1 answer:

galina1969 [7]3 years ago

3 0

Answer:

-4/5,-1/2,-0.2,0.25

Step-by-step explanation:

To order these, it would be best to convert them into decimals.

-4/5 is equal to -0.8

-1/2 is equal to -0.5

-0.8 is the least, because the further left on a number line, the less the number is.

-0.5 is next and then -0.2

Finally, 0.2 is the greatest

-4/5,-1/2,-0.2,0.25

Hope this helps :-)

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3 years ago

An airline is planning its staffing needs for the next year. If a new route is approved, it will hire 858 new employees. If a n

stealth61 [152]

Answer:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And from the problem we know the following:

$P(X_1) = 0.34 , X_1 =858$ represent the condition if the route is approved

$P(X_2) = 1-0.34=0.66 , X_1 =157$ represent the condition if the route is NOT approved

Then replacing in the formula for the expected value we got:

$E(X) = 858*0.34 + 157*0.66 = 395.34$

So then the expected number of new employees to be hired by the airline based on the conditions given is between 395 and 396.

Step-by-step explanation:

For this cae we can define the random variable X who represent the number of new employees to be hired by the airline and we can find the expected value with the following general formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And from the problem we know the following:

$P(X_1) = 0.34 , X_1 =858$ represent the condition if the route is approved

$P(X_2) = 1-0.34=0.66 , X_1 =157$ represent the condition if the route is NOT approved

Then replacing in the formula for the expected value we got:

$E(X) = 858*0.34 + 157*0.66 = 395.34$

So then the expected number of new employees to be hired by the airline based on the conditions given is between 395 and 396.

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3 years ago

A sum of money is divided amongst Rony, Lisa and Tulip in the ratio 10: 7: 5. If

vova2212 [387]

Answer:

$62.85

Step-by-step explanation:

Given data

ratio= 10: 7: 5

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Let the total amount shared be x

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cross multiply

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divide both sides by 7

x= 440/7

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3 years ago

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ANSWER

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EXPLANATION

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We convert all the mixed numbers to improper fraction to obtain,

$Average \: Weight = \frac{ \frac{33}{4} + \frac{13}{2} + \frac{53}{8} }{3}$

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This implies that,

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This simplifies to

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This gives us,

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