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kvasek [131]
2 years ago
8

PlS help lots of points

Mathematics
1 answer:
Len [333]2 years ago
3 0
I feel like there is something missing from this question, for example how large is the tree house? If these are just plain measurements, then I would opt for B.

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A square has an area of 561.69m2. Work out the perimeter of the square.
lara [203]

Answer:

The answer is 94.8 m

Step-by-step explanation:

Area of a square is a²

So, 23.7² = 561.69 m²

The side of the square is equal to 23.7 m

Perimeter of a square is the side multiplied by 4

So we have that 23.7 x 4 = 94.8 m

4 0
3 years ago
About how many times does a chickens heart beat in 1. Min
sammy [17]
Hello, a chickens heart beats 280-315 times per minute.

Happy Studies <3

8 0
3 years ago
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In an old story, a man puts 2 grains of rice on the first space of a chess board. He puts 4 grains on the second space, 8 grains
denis23 [38]
We know that
a1----------> <span>grains of rice in the first square
a1=2
n------------> space ubication
the expressions  is
 an=a1</span>^n----------> an=2<span>^n

for the </span><span>the tenth space  n=10
</span>an=2^10---------> an=1024 grains of rice

the answer is
1024 grains of rice

5 0
3 years ago
Read 2 more answers
How do you factorise 20w2y+24wy3
Lilit [14]
20w^2y+24wy^3=4wy(5w+6y^2)
5 0
3 years ago
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Lify 8<br> 7x2-x+8 – 5x2 + 3x – 10
zalisa [80]

Answer: (-5x2 - 8x + 7) - (5x2 - 4)

Step-by-step explanation:

= -5x2 - 8x + 7 - 5x2 + 4

= -5x2 - 5x2 - 8x + 7 + 4

= -10x2 – 8x + 11

Answer: = (-5x2 - 8x + 7) - (5x2 - 4)

6 0
3 years ago
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