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kicyunya [14]
3 years ago
14

The sycamore grove contains 30 sycamo

Mathematics
1 answer:
Zinaida [17]3 years ago
7 0

Answer:

40 trees

Step-by-step explanation:

Let the total number of trees be x.

75% of all the sycamore trees in the park are 30 trees.

So,75%of x=30

or,(75/100)*x=30

or,x=(30*100)/75

or,x=40 [ANS]

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(x+y)^2 (x2+2xy+y2) pleas show all work
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{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x

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Step-by-step explanation:

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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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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

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​​ )+y

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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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​2

​​ y

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​​ +2x

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​​ y+4x

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​​ y

​2

​​ +2xy

​3

​​ +y

​2

​​ (x

​2

​​ +2xy+y

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​​ )

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​​ y

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​​ +2xy

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​​ +y

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6 Collect like terms.

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7 Simplify.

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​​ +4x

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​​ y+6x

​2

​​ y

​2

​​ +4xy

​3

​​ +y

​4

​​  

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3 years ago
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