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3 years ago

What is the definition of union and intersection

Mathematics

1 answer:

Mkey [24]3 years ago

3 0

Step-by-step explanation:

the union of two sets is a new sets that contains all of the elements that are in at least one or two sets and written as (A U B)

while intersection of two sets is a new set that contains all of the elements in both sets and written as (A n B)

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All ______ numbers, which include rational and irrational numbers, can be plotted on a number line.

777dan777 [17]

Answer:

The letter D is correct (real)

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3 years ago

Read 2 more answers

|-13\ = -(-13) True False?

kolbaska11 [484]

Answer:

This statement is true.

Step-by-step explanation:

The absolute value is how far the number is from zero, so how many steps will it take on a number line to get from that particular number to zero?

Since you can't have negative steps, The -13 in absolute value would be 13.

The -(-13) is the same thing as saying -1 ( -13 ). Since negative times a negative is a positive, 13=13 is a true statement.

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2 years ago

Earth revolves around the Sun in 365 days, but the planet Mercury does so in only 88 days. Compared to Earth, how many more comp

Elena L [17]

Answer:

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

Step-by-step explanation:

Earth takes 365 days to make a complete revolution.

we can say that the rotational speed of Earth is $\dfrac{1}{365}\frac{\text{rev}}{\text{day}}$

so, in a 1000 days how many revolutions will Earth have made?

$\dfrac{1}{365}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

see that the 'day's cancel out. Simply multiply the two numbers!

$2.739\text{rev}$

Next, do the same for Mercury

we can say that the rotational speed of Mercury is $\dfrac{1}{88}\frac{\text{rev}}{\text{day}}$

as it completes 1 revolution in 88 days.

so, in a 1000 days how many revolutions will Mercury have made?

$\dfrac{1}{88}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

multiplying by 1/88 by 1000 yields:

$11.363\text{rev}$

The Question is how many MORE complete revolutions will Mercury make in 1000 days?

We need to subtract the revolutions of Mercury with Earth to find how far ahead is Mercury from Earth

$11.363\text{rev} - 2.739\text{rev}$

$8.624\text{rev}$

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

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3 years ago

I have picture of it

LiRa [457]

Answer:

basically multiply the prices by how much they filled up. That should give the answer.

Step-by-step explanation:

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2 years ago

Simplify the expression by using the distributive property 2(3x-5)

rjkz [21]

Step-by-step explanation:

multiply the outer term to the inner term

so, 6x-10.

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3 years ago