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3 years ago

Use a piece of paper to create an augmented matrix to represent this linear system.

Mathematics

2 answers:

Sergio [31]3 years ago

4 0

Answer:

Part 1: 2

Part 2: 2

Step-by-step explanation:

Find the attachment for more explanation.

Marrrta [24]3 years ago

4 0

Answer with explanation:

The two equation which we have to represent in terms of Augmented Matrix is:

1. 3 x - 4 y = 12

2. 2 x - 8 y = 16

So, Writing in terms of Augmented Matrix

$\left[\begin{array}{ccc}3&-4&12\\2&-8&16\end{array}\right]$

Number of Rows in the Augmented Matrix =2 →(Horizontal Segment)

Number of Columns in the Augmented Matrix =3 →(Vertical Segment)

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EastWind [94]

Answer:

$D.~ 34.2~cm^2$

Step-by-step explanation:

An arc measure of 20 degrees corresponds to a central angle of 20 degrees.

Area of sector of circle

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Answer:

Step-by-step explanation:

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3 years ago

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3 years ago

What is the solution to the inequality below?

Svetlanka [38]

Answer:

B. x < -8 or x > 8

Step-by-step explanation:

You can use process of elimination to solve this problem by going through every solution and testing them out, but let's jump right to B.

Process:

You know that since the inequality states that x^2 has to be greater than 64, x has to be more than 8, or less than -8.

This is because 8^2 = 64, and -8^2 = 64, and the inequality requires the answer to be more than 64.

Looking at B., you can see that if x is < -8, the square of, for example, -9, would be 81. This is greater than 64, so this works!

Now, B. also has an alternative. The 'or' is a major clue to which is the correct answer, since the square root of any number can be positive or negative. (-8^2 = 8^2)

The 'or' states that x must be greater than 8. So, for example, if we take the square of 10, we get 100, and that is also greater than 64.

We've proven that this solution is accurate for both parts, so it is definitely the one we want!

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3 years ago