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aksik [14]
3 years ago
11

How many countries have won the World Cup trophy at least once ?

Mathematics
1 answer:
Korolek [52]3 years ago
7 0

Eight (8) countries have made it and won the trophy for the World Cup.

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ANSWER ASAP
Nadya [2.5K]

Bisector is simply a straight that divides the line (through which it's passing) into two equal halves. Or simply, it passes through the midpoint of any line. It may make any angle with the line through which it passes.

Perpendicular Bisector is also the same but the only difference is that it makes an angle of 90° with the line through which it passes or cuts.

3 0
1 year ago
6|5x-4|-4=32 solve for x
Juliette [100K]

Answer:

x=2

Step-by-step explanation:

7 0
2 years ago
A rectangular enclosure is to be created using 82m rope.
atroni [7]
Let
x-----> the length of rectangle
y-----> the width of rectangle

we know that 
perimeter of rectangle=2*[x+y]
perimeter of rectangle=82 m
82=2*[x+y]---> divide by 2 both sides---> 41=x+y--> y=41-x---> equation 1

Area of rectangle=x*y
substitute equation 1 in the area formula
Area=x*[41-x]----> 41x-x²

using a graph tool
see the attached figure

the vertex is the point (20.5,420.25)
that means
 for x=20.5 m ( length of rectangle)
the area is 420.25 m²

y=420.25/20.5----> 20.5 m

the dimensions are
20.5 m x 20.5 m------> is a square

the answer part 1) 
<span>the dimensions of the rectangular with Maximum area is a square with length side 20.5 meters
</span>
Part 2)<span>b) Suppose 41 barriers each 2m long, are used instead. Can the same area be enclosed?
</span>divide the length side of the square by 2
so
20.5/2=10.25--------> 10 barriers
the dimensions are 10 barriers x 10 barriers
10 barriers=10*2---> 20 m

the area enclosed with barriers is =20*20----> 400 m²

400 m² < 420.25 m²
so

the answer Part 2) is 
<span>the area enclosed by the barriers is less than the area enclosed by the rope
</span>
Part 3)<span>How much more area can be enclosed if the rope is used instead of the barriers
</span>
area using the rope=420.25 m²
area using the barriers=400 m²

420.25-400=20.25 m²

the answer part 3) is
20.25 m²

6 0
3 years ago
Write the equation of the line passing<br> through the point (2, -1) with a slope of -3.
Harman [31]

Answer:

Y=-3x+5

Step-by-step explanation:

3 0
2 years ago
Five-digit locker combinations are assigned using the digits 1–9. In how many ways can the combinations be formed if no digit ca
Orlov [11]

Answer:

15, 120

Step-by-step explanation:

9P4

.............................................................................................

4 0
3 years ago
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