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serg [7]
3 years ago
11

What must be true of a linear system for it to have a unique​ solution? select all that apply.

Mathematics
1 answer:
Natalija [7]3 years ago
3 0
There are NO choices.
I know for TWO linear equations to have a unique solution they CANNOT be parallel.

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Find the product of 50×28
barxatty [35]
50 times 28, you will get 1400.

If trying to mental calculate, I would :
28=20+8
50 times 20 = 1000
50 times 8 = 400
Then add them up to 1400.
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3 years ago
Pls help! will mark branliest!!! :)
Ket [755]

The area of the house is the amount of space on the house.

  • The length of the addition is x + 20
  • The area of the original house is x^2 + 30x + 200

<h3>The length of the addition</h3>

The area of the addition is given as:

Area = x^2 + 10x - 200

Expand

Area = x^2 + 20x - 10x - 200

Factorize

Area = x(x + 20) - 10(x + 20)

Factor out x + 20

Area = (x -10)(x + 20)

The width of the addition is x - 10.

Hence, the length of the addition is x + 20

<h3>The area of the original house</h3>

The dimension of the original house is

x + 20 by x + 10

So, the area is:

Area =(x + 20)(x + 10)

Expand

Area =x^2 + 20x + 10x + 200

This gives

Area =x^2 + 30x + 200

Hence, the area of the original house is x^2 + 30x + 200

Read more about areas at:

brainly.com/question/24487155

8 0
2 years ago
What is the equation of the line that passes through the point (-7, 2) and has a slope of -1?​
Morgarella [4.7K]

Answer:

y= -1x-5

Step-by-step explanation:

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2 years ago
Please help will give Brain!!
mihalych1998 [28]

yes i think because i think so

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2 years ago
Read 2 more answers
6895 round to nearest thousand​
garik1379 [7]

Answer:

7000

Step-by-step explanation:

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