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Oksana_A [137]
3 years ago
5

What irrational number is between 4.47 and 4.48?

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer: √20 is between 4.47 and 4.48

Step-by-step explanation:  Square roots of numbers between perfect squares are irrational numbers. 16 and 25 are squares of 4 and 5, so the irrational number we are looking for must be about halfway between 16 and 25.

\sqrt{20} =4.472135955  is more than 4.47 and less than 4.48

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Solve this problem.
Katyanochek1 [597]

Answer:

Let x = the width of the smaller rectangle.

The length of the smaller rectangle is 2x - 1.

Area is A = lw

So the area of the smaller rectangle is A = (x)(2x - 1) = 2x^2 - x

Step-by-step explanation:

hope it helped

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3 years ago
HELPP! ASAP PLS!! Find the surface area of the composite solid. Leave your answer in exact terms.
Andreyy89

Answer:

Step-by-step explanation:

First find the surface area of the clyinder and find the area circles and subtract

Then find the surface area of a cone, remove the circle area and double it.

Clyinder surface area (without circle area) 2πrh+2πr2=2·π·4·6+2·π·42≈251.32741

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3 0
2 years ago
ABCD is a rectangle. Its diagonals are AC and BD. If AC = 12cm, then BD = _______cm
defon

Answer:

BD = 12\ cm

Step-by-step explanation:

Given

Shape: Rectangle

Diagonals: AC and BD

AC = 12\ cm

Required

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Every rectangle has 2 diagonals, both of which are equal.

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BD = AC

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AC = 12\ cm

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8 0
3 years ago
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Answer:

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x+y=19

x-y=7

-----------

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5 0
2 years ago
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