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Katarina [22]
3 years ago
5

Please help please please

Mathematics
1 answer:
Ksju [112]3 years ago
8 0
∩ stands for the intersection of the two arrays think a venn diagram in this it would be three

<span>∪ stands for objects that belong to either set
</span>
It would be A <span>∪ B because that set shows objects from both sets

If i'm wrong sorry its been a while since I've practiced or learned it</span>
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A sandbox has a perimeter of 21 1/2 feet. If the length is 5 1/4 feet, what is the area of the sand box?
LiRa [457]
The perimeter of a rectangle is twice the sum of length and width, so the sum of length and width is half the perimeter, 10 3/4 ft.

The width will be the difference between this and the length, hence 5 1/2 ft.

The area is the product of length and width.
  A = length×width
  A = (5.25 ft)×(5.5 ft) = 28.875 ft²

The area of the sandbox is 28 7/8 ft².
4 0
3 years ago
Help....!! I need to solve this simultaneous equation y=x-2 and y=3x+5 With working out if possible please....
Blababa [14]

Step-by-step explanation:

Y= x - 2. Y = 3x + 5

Putting value of y

x - 2 = 3x + 5

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Putting value of x

Y = 3(-7/2) + 5

Y = - 10.5 + 5

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6 0
3 years ago
Please help WILL MARK BRAINLIEST I need the right answer​
LUCKY_DIMON [66]

Answer: a

Step-by-step explanation:

6 0
2 years ago
Help soon
frozen [14]

Answer:

the answer is 3/100

Step-by-step explanation:

the probability=

pr(blue)*pr(black)

=3/10*1/10

=3/100

hope this helps

please give brainest

4 0
2 years ago
The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys part
Zinaida [17]
The way i do it, is sort of like this :

Is 7 a factor of 42? 
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7 is a factor of 42. 
It must be in multiples of 7!

Therefore, we have 5 on the other side, which makes it 5 x 7 = 35
7 0
3 years ago
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