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klio [65]
2 years ago
11

Which system of linear equations can be solved using equation [x y] = [1/4 3/4 1 2] [28 -12]

Mathematics
1 answer:
ahrayia [7]2 years ago
6 0

-8x+3y=28

4x-y=-12

<u><em>Step-by-step explanation:</em></u>

Let's find x and y from matrices and then check for this systems.

\left \[[ {{\frac{1}{4} *28-\frac{3}{4}-12 } \atop {1*28-2*12}} \right.]

Simplify, so we got

7-9

28-24

------

So x=-2

y=4

So we need to put those values and check system.

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3. Simplify the expression -3(4x -2) -2x<br><br> A. -8x<br> B.-16x<br> C.-14x -2<br> D.-14x+ 6
beks73 [17]
I got C. -14x - 2
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7 0
2 years ago
Write the coordinates​
Ilia_Sergeevich [38]
What kind of coordinates?
6 0
3 years ago
Pc Richard and son are selling a drone for 179.99 for 10% off and $20 off to the first 100 customers what’s the price
den301095 [7]

Answer:

The price for the first 100 customers is $142.00.

Step-by-step explanation:

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3 0
3 years ago
The range of all real numbers x such that 2x − 5 &lt; 7 and 4x + 10 &gt; 6 is
hammer [34]
2x - 5 < 7
2x = 12
x = 6

4x + 10 > 6
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x = - 1

( - 1 , 6 )

i am a mathematics teacher. if anything to ask please pm me
5 0
2 years ago
Which of the following relations is NOT a function?
topjm [15]
According to Wikipedia: "<span>In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output."

So based of this we need to look for a set where one of the x values or the y values is the same, and the other number is different.

Answer:
B.
(1,4) and (1,1) both have the same x, but different y!
</span>
5 0
3 years ago
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