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KonstantinChe [14]

3 years ago

10

please help really quickly i will literally give u 5 stars thanks and brainliest its also worth 21 points please help quickly i

only have 5 minutes left im begging

1 answer:

Alika [10]3 years ago

5 0

Answer:

PART B: E,B and C, A

Step-by-step explanation:

Part B is all I can help you with. (I'm Sorry)

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PLEASE HELP!!!!! What is the value of x in the matrix equation below?

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The given matrix equation is,

$1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]$ .

Multiplying the matrices with the scalars, the given equation becomes,

$\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right] \\$

Adding the matrices,

$\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right] \\$

Matrix equality gives,

$1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2$

Solving the equations together,

$y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10$

We can see that the equations are not consistent.

There is no solution.

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Answer:

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6 - 3x = 4 - x - 3 - 2x (Given)

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