Please math help 50 points

Mathematics

2 answers:

tigry1 [53]3 years ago

6 0

1. A=(2x)^2-2x*x/2 -2x*x/2=4x^2-x^2-x^2=2x^2

2. A=7x*5x- 4x*3x/2=35x^2-6x^2=19x^2,
V(5x)^2 - (4x)^2= V(25x^2-16x^2)=V9x^2=3x
3. A=3x*2x-2x*x/2-x*x/2=6x^2-x^2-x^2/2=5x^2-x^2/2=(10x^2-x^2)/2=9x^2/2 = 4.5x^2
4. h=V(5x)^2- (3x)^2/4= V 25x^2-9x^2/4=V100x^2-9x^2/4=V91x^2/4=xV91/2
A=3x*h/2+3x*h/2=6x*h/2=6x/2* xV91/2=6x^2V91/4

Luda [366]3 years ago

6 0

1. A=(2x)^2-2x*x/2 -2x*x/2=4x^2-x^2-x^2=2x^2
2. A=7x*5x- 4x*3x/2=35x^2-6x^2=19x^2, V(5x)^2 - (4x)^2= V(25x^2-16x^2)=V9x^2=3x3. A=3x*2x-2x*x/2-x*x/2=6x^2-x^2-x^2/2=5x^2-x^2/2=(10x^2-x^2)/2=9x^2/2 = 4.5x^24. h=V(5x)^2- (3x)^2/4= V 25x^2-9x^2/4=V100x^2-9x^2/4=V91x^2/4=xV91/2A=3x*h/2+3x*h/2=6x*h/2=6x/2* xV91/2=6x^2V91/4

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