Which matrix represents the system of equations shown below? 5x+3y = 19 10x - y = 17

1 answer:

4 0

_ _ _ _
| 5 3| | 19 |
| 10 -1 | | 17 |
|_ _| |_ _|

Each coefficient can be placed in its corresponding spot in a 2x2 matrix, and the answers in their 2x1 matrix.

Hope this helps!
-Lacy

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Which shows the expression below simplified? 0.00028 ÷ (7 × 10-4)

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Question Progress

mixas84 [53]

Answer:

Please check the attached figure!

Step-by-step explanation:

Part a)

Point A is located at the x-coordinate x=-4 and y-coordinate y=1.

Hence, the coordinates of point A = (-4, 1)

Part b)

Point B(3, -2) has been plotted and is shown in the attached figure.

It is clear from the attached diagram that point B is located at the x-coordinate x=3 and y-coordinate y=-2. Hence, the coordinates of point B = (3, -2)

Part C)

Point C has the same x-coordinate as point A i.e. x=-4 and the same y-coordinate as point B i.e. y=-2.

Hence, the coordinates of point C = (-4, -2). Point C is also plotted as shown in the diagram.

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Solve the equation. 3 (x - 1) = 18

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3 ( x - 1 ) = 18
or, 3x - 3 = 18
or, 3x = 18 - 3
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or, x = 15 ÷ 3
or, x = 5

Answer:

x = 5

Hope you could understand.

If you have any query, feel free to ask.

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