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Andreas93 [3]
3 years ago
10

When will n(A∩B)=0? Explain and give an example.

Mathematics
1 answer:
andrew11 [14]3 years ago
8 0

Answer:

Two sets are called disjoint if they have no elements in common. For example:

The sets S = { 2, 4, 6, 8 } and T = { 1, 3, 5, 7 } are disjoint.

Another way to define disjoint sets is to say that their intersection is the empty set,

Two sets A and B are disjoint if A ∩ B = 0.

In the example above,

S ∩ T = ∅ because no number lies in both sets.

Step-by-step explanation:

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levacccp [35]

Answer:

18 is 72% of 25 which is also known as 28% less of 25

Step-by-step explanation:

18/25=.72

1-.72=.28

.28=28%

8 0
3 years ago
Read 2 more answers
If 60% of a KNOWN NUMBER is 180, what is the 40% of that UNKNOWN NUMBER?
Lana71 [14]

Step-by-step explanation:

I think you mean you want to find out 40% of a number,, when 60% of it is 180, so I'll answer that:

60% = 180

÷6

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x4

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(if you want to find 100%, multiply 30 by 10)

Hopefully this helps :)

4 0
2 years ago
A basketball player makes 75% of her free throws. If she made 84 free throws this season, how many has she attempted?
myrzilka [38]
If you would like to know how many free throws did a basketball player attempted, you can calculate this using the following steps:

75% of x is 84
75% * x = 84
75/100 * x = 84
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The correct result would be 1<span>12 free throws.</span>
8 0
4 years ago
Work out the perimeter of this semicircle with radius 3cm. Give your answer in terms of π​
kondaur [170]

Step-by-step explanation:

<u>Given </u><u>:</u><u>-</u><u> </u>

A semicircle is given with radius of 3cm .

And we need to find the perimeter of the semicircle . We know the perimeter as ,

:\implies Perimeter = πr

:\implies Perimeter = 3cm × π

:\implies Perimeter = 3π cm .

Now there is the diameter of circle is 6cm . Hence totally the perimeter is ,

:\implies Perimeter = 3π + 6 cm

We were supposed to give answers in terms of π .

<h3>Hence the perimeter is ( 3π + 6 ) cm</h3>
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I need help with this , I understand the thingy but I forgot what to do to solve it
True [87]

Answer:

if the team keeps winning at this rate they will have one 20 out of 25 games. The newspaper projected 23 out of 25 games. there's a three-game difference between The trend of the team and the prediction of the newspaper. The difference is 3 out of 25. divide 3 by 25 and you get 0.12 = 12%

4 0
3 years ago
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