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kenny6666 [7]
3 years ago
11

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

Mathematics
1 answer:
rewona [7]3 years ago
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)
Katyanochek1 [597]
0.\underbrace{00028}_{\rightarrow5places}=28\times10^{-5}\\\\0.00028:(7\times10^{-4})=\dfrac{28\times10^{-5}}{7\times10^{-4}}=\dfrac{28}{7}\times\dfrac{10^{-5}}{10^{-4}}\\\\=4\times10^{-5-(-4)}=4\times10^{-5+4}=\huge\boxed{4\times10^{-1}}\leftarrow\boxed{b.}\\\\used\ \dfrac{a^n}{a^m}=a^{n-m}
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3 years ago
I really need helpppppp<br><br> I’m confused
Natasha2012 [34]
Add 35+ 72.5=107.5 that should give you your answer for c and the answer for d is acute because the triangle would have to be 360 to be Obtused and it's not a right triangle because you don't have a 90 degree angle
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3 years ago
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Natali [406]
The answer is A.0

hope this helped
4 0
3 years ago
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.

7 0
3 years ago
Solve the equation. 3 (x - 1) = 18
In-s [12.5K]
  • 3 ( x - 1 ) = 18
  • or, 3x - 3 = 18
  • or, 3x = 18 - 3
  • or, 3x = 15
  • or, x = 15 ÷ 3
  • or, x = 5

<u>Answer</u><u>:</u>

<u>x </u><u>=</u><u> </u><u>5</u>

Hope you could understand.

If you have any query, feel free to ask.

4 0
3 years ago
Read 2 more answers
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