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Dominik [7]
3 years ago
9

Write an indirect proof to show that opposite sides of a parallelogram are congruent. Be sure to create and name the appropriate

geometric figures.
Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0
So the problem ask to find an indirect proof to show that opposite sides of a parallelogram are congruent. So if we want to prove that a rectangle has a vertexes of ABCD where as to prove that AB=CD, lets start by proving it using AB is not equal to CD nad forming a parallelogram and the lines that bisect each side can prove that AB=CD
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PLS HELP 3x+4 = 2 (x - 1)
vodka [1.7K]

Answer:

x= -6

Step-by-step explanation:

3x+4= 2 (x - 1)

3x+4= 2x -2

Subtract 4 from both sides of the equation

Simplify

Subtract 2x from both sides of the equation

Simplify

= -6

7 0
3 years ago
Read 2 more answers
Divide £700 in the ratio 6:4 (2 marks)
SpyIntel [72]

Answer:

One num = 6x = 6 x 70 = 420

Second= 4x = 4 x 70 = 280

Step-by-step explanation:

6x + 4x = 700

10x = 700

x = 700/10 = 70

One num = 6x = 6 x 70 = 420

Second= 4x = 4 x 70 = 280

I hope im right!

7 0
3 years ago
Y = 10 when x = 2 find y when x = 3
Tresset [83]
You are going to want to isolate the variable shave u done tht yet

3 0
3 years ago
Can you help me plz?
lys-0071 [83]
14 weeks. 56 divides by 4 to get 14
4 0
4 years ago
Read 2 more answers
Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a packag
notka56 [123]
We have no dimensions to work with. I'll pick some and try and comply with the conditions of the problem. 

Suppose you have an object that is 14 by 22 by 27 cm. These three numbers have no common factor so they cannot be reduced any further, which is helpful for this problem.

Find the Volume
Volume

l = 27 cm
w = 14 cm
h = 22 cm

V = 27 *14 * 22
V = 8316 cm^3

Find the surface area
SA = 2*l*w + 2*l*h  + 2*w*h
SA = 2*27*14  +  2*27*22   +  2*14*22
SA = 756 + 1188 + 616
SA = 2558

Just looking at these numbers The surface area is about 1/3 of the volume. I don't think this is always true.


 \frac{SA}{V} =  \frac{2*L*W  + 2*L*H + 2*W*H}{L*W*H} 

Another way to do this is to consider a cube which might give you a more useful result. 

s = L = W = H all three dimensions are equal in a cube.
The volume of a cube is s*s*s = s^3
The surface area of a cube is 2*s*s + 2*s*s + 2s*s = 6s^2

\frac{SA_cube}{V_cube} =  \frac{6s*s}{s*s*s}
\frac{SA}{V} =  \frac{6}{s}

That means whatever the side length, the Surface Area to volume = 6/the side length which is kind of an interesting result.


4 0
3 years ago
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