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Nuetrik [128]
3 years ago
5

How is 81 written as a product of its prime factors​

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

Step-by-step explanation:

lets remember which are the prime numbers 1 to 81

2,3,5,7,23,29,31,37,....83

the only way you can write 81 as a product of its prime factors are

3x3x3x3=3^4

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kvv77 [185]

Step-by-step explanation:

area of the trapezoid = area of the 2 triangles +

area of the rectangle

i) area of triangle on left:

a = ½ bh

a = ½ × 2 × 9

a = 9 in²

ii) area of triangle on right:

a = ½ bh

a = ½ × 2 × 9

a = 9 in²

iii) area of rectangle = length × width

a = l × w

a = 12 × 9

a = 108 in²

iv) area of trapezoid = 9 + 9 + 108

= 126 in²

hope this helps you!

-s.

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Answer:

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Answer:

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Step-by-step explanation:

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Ne4ueva [31]

Answer:

Hi there!

Your answer is;

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Step-by-step explanation:

After three hours, with a rate of 20% an hour, 60% should have died

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