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Minchanka [31]
3 years ago
8

What is the ratio of x to y?

Mathematics
1 answer:
xeze [42]3 years ago
5 0
2/3 = x/(3x + y)

2*(3x + y) = 3*x

2*3x + 2*y = 3x

6x + 2y = 3x

6x - 3x = - 2y

3x = -2y

x/y = -2/3

x : y =  -2/3. 
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So the polynomial 24r squared represents the surface are of a cube a : determine the polynomial that represents the area of one
Naddika [18.5K]

Answer:

a. 4r² b. 2r c. 6 cm

Step-by-step explanation:

The surface area A of the cube is A = 24r². We know that the surface area, A of a cube also equals A = 6L² where L is the length of its side.

Now, equating both expressions, 6L² = 24r²

dividing both sides by 6, we have

6L²/6 = 24r²/6

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b.  Since L² = 4r² the rea of one face of the cube, taking square roots of both sides, we have

√L² = √4r²

L = 2r

So, the polynomial that represents the length of an edge of the cube is L = 2r

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L = 2r = 2 × 3 cm = 6 cm

So, the length of an edge of the cube is 6 cm.

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2 years ago
For a given triangle it is known that cos A =-0.5, where 0° <br> Based on the information given above, the value of angle(s) A i
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Answer:

120

Step-by-step explanation:

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Now, we should understand that the value of an angle in triangle cannot be more than 180

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So,

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300 is not correct also as it is more than the angles present in a triangle

Thus, our answer is 120

7 0
3 years ago
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