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I am Lyosha [343]
3 years ago
5

jill used stones that were each 3)4 of a foot to build a wall. dhe piled 6 stones on top of each fractional wall

Mathematics
2 answers:
kipiarov [429]3 years ago
7 0

<span>Jill usó piedras que eran cada una 3) 4 de un pie para construir una pared. Dhe apiló 6 piedras en la parte superior de cada pared fraccional</span>
agasfer [191]3 years ago
4 0
4.5 feet bc 3/4 times 6 is 4.5 feet
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Please answer quickly<br>expand and simplify: 4(5x-3y) (x-4y) -(3x-4y)(2x+3y)​
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Answer: 14x^2-93xy+60y^2 Hope that helps!

Step-by-step explanation:

1. Expand by distributing terms

(20x-12y)(x-4y)-(3x-4y)(2x+3y)

2. Use the Foil method:(a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(3x-4y)(2x+3y)

3. Use the Foil method : (a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(6x^2+9xy-8yx-12y^2)

4. Remove parentheses 20x^2-80xy-12yx+48y^2-6x^2-9xy+ 8yx+12y^2

5. Collect like terms (20x^2-6x^2)+(-80xy-12xy-9xy+8xy)+(48y^2+12y^2)

6. Simplify.

And your answer would be 14x^2-93xy+60y^2

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