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yulyashka [42]
4 years ago
5

5 + n2 > 8 A. n > 6 B. n>3 C. n>1.5 D. n < 26

Mathematics
2 answers:
babymother [125]4 years ago
6 0

Answer: n>1.5

( n2 here means 2×n not n² )

Step-by-step explanation:

5 + 2n > 8

Subtract 5 from both sides

5 -5 + 2n > 8 -5

2n > 3. Divide both sides by 2

2n/2 > 3/2

n = 1.5

san4es73 [151]4 years ago
4 0
N•2>8
then dive both sides 2n>8
and get n>4
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Greetings!

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3 years ago
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s2008m [1.1K]

Answer:

1.  Identify the problem: Packaging boxes use too much material and create waste

2. What are the equations for the volume and surface area of a cube and rectangular prism?

Volume of a cube: Vcube = L x L x L = L3

Surface area of a cube: SAcube = 6 x (L x L) = 6L2

Volume of a rectangular prism: VRP = L x W x H = LWH

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3. What is the difference in surface area of the packages below? (Note that they have the same volume.)

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3 years ago
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Answer:

{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x

​4

​​ +4x

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​​ +4xy

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1 Use Square of Sum: {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}(a+b)

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({x}^{2}+2xy+{y}^{2})({x}^{2}+2xy+{y}^{2})(x

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{x}^{2}({x}^{2}+2xy+{y}^{2})+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x

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​​ +2xy+y

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​​ )+y

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​​ (x

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3 Expand by distributing terms.

{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x

​4

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​​ y

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​​ +2xy(x

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{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2{x}^{3}y+4{x}^{2}{y}^{2}+2x{y}^{3}+{y}^{2}({x}^{2}+2xy+{y}^{2})x

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​​ y

​2

​​ +2x

​3

​​ y+4x

​2

​​ y

​2

​​ +2xy

​3

​​ +y

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​​ x

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​​ x+y

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6 Collect like terms.

{x}^{4}+(2{x}^{3}y+2{x}^{3}y)+({x}^{2}{y}^{2}+4{x}^{2}{y}^{2}+{x}^{2}{y}^{2})+(2x{y}^{3}+2x{y}^{3})+{y}^{4}x

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goblinko [34]
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3 0
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