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Molodets [167]
3 years ago
5

For a display, identical cubic boxes are stacked in square layers. Each layer consists of cubic boxes arranged in rows that form

a square, and each layer has 1 fewer row and 1 fewer box in each remaining row than the layer directly below it. If the bottom of the layer has 81 boxes and the top of the layer has only 1 box, how many boxes are in display?A. 236B. 260C. 269D. 276E. 285
Mathematics
1 answer:
Reika [66]3 years ago
3 0
Dang i wish i knew what that answer was
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Rewrite the equation by completing the square. 4 x^{2} +20x +25 =0
Ede4ka [16]

Answer:

(x+5/2)^2 = 0

Step-by-step explanation:

4 x^{2} +20x +25 =0

Divide by 4

4/4 x^{2} +20/4x +25/4 =0

x^2 +5x +25/4 =0

Subtract 25/4 from each side

x^2 +5x +25/4 -25/4 =-25/4

x^2 +5x  =-25/4

Take the coefficent of x

5

Divide by 2

5/2

Square it

25/4

Add it to each side

x^2 +5x +25/4 =-25/4+25/4

(x+5/2)^2 = 0

Take the square root of each side

x+5/2 = 0

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8 0
3 years ago
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NEED HELP QUICK !!!<br> Find the value of side X ?
tankabanditka [31]

a²+b²=x²

4²+3²= x²

16+9= x²

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V25= x

5= x

7 0
2 years ago
Please answer this thanks
olganol [36]

Answer:

It's C! 75%

Step-by-step explanation:

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Two angles form a linear pair. The measure of one angle is twice the measure of the other angle. Find the measure of each angle.
Flauer [41]

Answer:

The smaller angle measures = 60º

The larger angle measures = 120º

Step-by-step explanation:

The sum of angles in linear pair is 180

The measure of one angle is twice the measure of the other angle.

x + 2x = 180

Combine like terms

3x = 180

Divide both sides by 3

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NARA [144]

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7-7i

Step-by-step explanation:

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3 years ago
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