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12345 [234]
3 years ago
15

How many uniqueways are to stack two 2 by 4 lego bricks?

Mathematics
1 answer:
saul85 [17]3 years ago
4 0
It should be 5 different ways
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Please please help me please
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Answer:

Step-by-step explanation:

height of a triangle=4x-1

base=5x+2x-3

=7x-2

area of triangle=base*height/2

=(7x-2)(2x-3)/2

=7x*2x-7x*3-2*2x+2*3/2

=14x^2+21x-4x-6/2

=14^2+17x-6/2

area of rectangle=l*b

(7x-2)(4x+1)

7x(4x+1)-2(4x+1)

4x*7x+7x*1-2*4x-2*1

=28x^2+7x-8x-2

=28x^2-x-2

area of shaded part=area of rectangle-area of triangle

=(28x^2-x-2 )-\frac{14x^2+17x-6}{2}

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