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Yuliya22 [10]
3 years ago
9

The matrix to solve

Mathematics
2 answers:
luda_lava [24]3 years ago
8 0
4x-4=0
8x+4=8

4x=4
8x=4

4x=8x

It doesn't work so this is proof that this is incorrect.

Hope this helps :)
Maurinko [17]3 years ago
4 0
This question is impossible to solve.

this is why:

if 4x-4=0
then x=1

so if 8x + 4 = 8

then x is false.

I get these question quite a lot in my GCSEs.

you have to prove why they are fake.

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A car is 180 inches long. A truck is 75% longer than the car. How long is the truck?
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

The truck is 315 inches long

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3 years ago
A family installs and fills an aboveground pool. The swimming pool costs $850 to install, and it costs $75 per thousand gallons
kari74 [83]

Answer:

925????

Step-by-step explanation:

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3 years ago
Find the dimensions of the rectangle with area 289 square inches that has minimum perimeter, and then find the minimum perimeter
nalin [4]
 <span>To minimize the perimeter you should always have a square. 
sqrt(289) = 17 
The dimensions should be 17 X 17 

To see , try starting at length 1, and gradually increase the length. 
The height decreases at a faster rate than the length increases, up until you reach a square. 

Or if you want to use algebra, Say the width is 17-x 
Then the length is 289/(17-x) 

Now, this is bigger than 17+x, as shown here: 
289/(17-x) > 17+x 
289 > 289 - x^2 
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4 0
3 years ago
Which of these is a unit of density?<br> Please help.
katen-ka-za [31]

Answer:

I think is C.

Step-by-step explanation:

Hope it's help you ❤️❤️❤️❤️❤️❤️❤️

7 0
3 years ago
Read 2 more answers
A mini game cube is covered in different colors and has a side length of 1.8 inches. Which of the following would represent the
svet-max [94.6K]

complete question:

A mini game cube is covered in different  colors and has a side length of 1.8 inches.  Which of the following would represent the  amount of space covered in various colors?

A. 116.64 in2

B. 3.24 in2

C. 19.44 in2

D. 10.8 in2

Answer:

C. 19.44 in2

Step-by-step explanation:

A cube is a 3 dimensional figure bounded by 6 square faces. All the sides of a cube are equal in length. The picture below is a cube. The amount of space covered in different colors will be the surface area of the cube.

surface area = 6L²

where

L = length

L = 1.8 inches

surface area =  6 × 1.8²

surface area  = 6 × 3.24

surface area = 19.44 inches²

7 0
3 years ago
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