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OleMash [197]
3 years ago
14

I don’t understand the symbols in number 5 please

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

Binary Operations

The union of two sets A and B is denoted A ∪ B and

is defined as A ∪ B = {x|x ∈ A or x ∈ B}.

The intersection of two sets A and B is denoted A∩B

and is defined as A ∩ B = {x|x ∈ A and x ∈ B}.

Two sets are disjoint if they have no elements in common,

that is, A and B are disjoint if A ∩ B = ∅.

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zavuch27 [327]
2/9 is already simplified but it’s decimal form is
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0.2
4 0
3 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
Tanya [424]

Answer:

NI = 45

IG=28

HG^2 = NI^2 +IG^2

= 45^2 +28^2

=2025+784

= 2809

HG=53

CosG = IG/HG

= 28/53

= 0.52

8 0
3 years ago
A cubical house can hold 4096m of air .find the height of the house​
iren2701 [21]

Answer:

16 m

Step-by-step explanation:

V = s^{3}

4096 = s^{3}

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3 years ago
Which events have a probability of 25 percent? Select three options.
Marta_Voda [28]

Answer:

choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans

spinning a number less than 2 on a spinner that has four equal sections numbered from 1 to 4

choosing a spade out of a standard deck of cards that contains 13 hearts, 13 clubs, 13 diamonds, and 13 spades

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans

2 green jelly beans in a set of 2+5+1 = 8 jelly beans

2/8 = 0.25.

So this is one of the options.

rolling a number less than 3 on a six-sided die

2 options(1 or 2) out of 6 possible values

2/6 = 0.3333...

So this is not one of the options.

spinning a number less than 2 on a spinner that has four equal sections numbered from 1 to 4

1 options(1) out of four possible sections(1,2,3,4)

1/4 = 0.25

So this is one of the options.

choosing an Oregon state quarter out a bag that contains 4 California state quarters, 3 Oregon state quarters, 6 Texas state quarters, and 3 New York state quarters

3 Oregon quarters out of 4+3+6+3 = 16 quarters

3/16 = 0.1875

Not one of the options

choosing a spade out of a standard deck of cards that contains 13 hearts, 13 clubs, 13 diamonds, and 13 spades

13 cards(spades) out of a set of 52 cards

13/52 = 0.25

So this is the final option

8 0
3 years ago
Read 2 more answers
A parallelogram has one angle that measures 106°. What are the measures of the other three angles in the parallelogram?
Katen [24]

Answer:

74°,74° and 106°

Step-by-step explanation:

180 -106=74°

The two opposite interior angles=74°each

The other one=106°

3 0
2 years ago
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