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wel
2 years ago
15

I will give you brainlist. But only if your answer is valid

Mathematics
2 answers:
spayn [35]2 years ago
4 0

Answer:

Ima just tell you right now, good luck, bc your going to need it...

Step-by-step explanation:

pashok25 [27]2 years ago
4 0

Answer: senario 1  - i think

senario 2 will take 5hr

Step-by-step explanation:

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What is 620,000 rounded to the nearest ten thousand
Sedaia [141]
620,000 rounded to the nearest thousand is:

620,000 because 2 is less than 5

Hope I Helped You!!!
5 0
2 years ago
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2. What is the x-value to the solution for the system of equations y = -5x - 9 and y = 2x<br> + 5.
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Answer:

The x-value is -2

Step-by-step explanation:

U can substitute any of the equations for y

-5x + (-9) = 2x + 5

-9 = 7x + 5

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-2 = x

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2 years ago
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7 0
3 years ago
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2x + y - z = -8
Andreyy89

Answer:

Multiply row 1 by \frac{1}{2}.

Step-by-step explanation:

The augmented matrix of the system of linear equation is described below:

\left[\begin{array}{cccc}2&1&-1&-8\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]

Where a_{11} = 2, if we need to create a_{11} = 1, we need to multiply row 1 by \frac{1}{2}, that is to say:

\left[\begin{array}{cccc}1&\frac{1}{2} &-\frac{1}{2} &-4\\0&2&3&-6\\-\frac{1}{2} &1&1&-4\end{array}\right]

Hence, the correct answer is: Multiply row 1 by \frac{1}{2}.

5 0
2 years ago
A school wants to buy a chalkboard that measures 1 yard by 2 yards. The chalkboard costs $71.00 per square yard. How much will t
KengaRu [80]

Answer:

142

Step-by-step explanation:

6 0
3 years ago
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