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bixtya [17]
3 years ago
12

What is the solution the this equation? solve using linear combination method:

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
6 0
The solution is x=6 and y=5

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Answer:The answer is B

Step-by-step explanation:

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2 years ago
Part A: The area of a square is (9x2 − 12x + 4) square units. Determine the length of each side of the square by factoring the a
Sladkaya [172]

Answer:

Part A: The length of each side is 3x-2 units long.

Part B: The dimensions are 5x-4 and 5x+4 units long.

Step-by-step explanation:

Part A:

--> 9x^2-12x+4

--> Multiply 9 times 4 to see the factors of that product

--> 9 times4 = 36

Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36

Use the factor 6 and make it negative so -6

add another -6

Keep in mind that it is -6x

--> 9x^2-6x-6x+4

Separate the four terms into two different binomials

--> 9x^2-6x  and -6x+4

Factor the binomials

With 9x^2-6x you can factor a 3x

So it will 3x(3x-2)

Do the same thing with -6x+4

You can factor out a -2

-2(3x-2)

The reason you factor out a -2 and not 2 is because it has to be same so in this case it is (3x-2)

Take the two numbers that you factored and put them to make an expression so (3x-2)

--> (3x-2)(3x-2) or (3x-2)^2

3x-2 is the length of each side so it is 3x-2 units long

Part B:

-->25x^2-16y^2

Use the difference of squares

take the square root of 25x^2

that is 5x

take the square root of 16y^2

that is 4y

write it in this way (5x+4y)(5x-4y)

These are the dimensions of the rectangle

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2 years ago
Thomas buys a skateboard that is 2 feet long. What is the length, in inches, of the skateboard?
Leviafan [203]
1 foot is 12 inches

so 12 times 2 
24

the answer is 24 inches
5 0
3 years ago
PLEASE ANSWER QUICK
hjlf
R-s=c but I'm not for sure
7 0
3 years ago
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