3 years ago

How many solutions 4.5z = 4.5z – 6.25 + 6.25

Mathematics

1 answer:

valkas [14]3 years ago

4 0

Answer:

no solution

Step-by-step explanation:

There is no solution.

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Archy [21]

Answer:

1. 12

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3 years ago

What are the terms of 12x^2

alexandr402 [8]

The terms of 12x^2=36=6

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3 years ago

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igor_vitrenko [27]

Answer:

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Step-by-step explanation:

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3 years ago

What is the determinant of the coefficient matrix of this system? <br> 4x-3y=-8 <br> 8x-3y=12

gladu [14]

The coefficient matrix is build with its rows representing each equation, and its columns representing each variable.

So, you may write the matrix as

$\left[\begin{array}{cc}\text{x-coefficient, 1st equation}&\text{y-coefficient, 1st equation}\\\text{x-coefficient, 2nd equation}&\text{y-coefficient, 2nd equation} \end{array}\right]$

which means

$\left[\begin{array}{cc}4&-3\\8&-3\end{array}\right]$

The determinant is computed subtracting diagonals:

$\left | \left[ \begin{array}{cc}a&b\\c&d\end{array}\right]\right | = ad-bc$

So, we have

$\left | \left[\begin{array}{cc}4&-3\\8&-3\end{array}\right] \right | = 4(-3) - 8(-3) = -4(-3) = 12$

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3 years ago

Which of the following represents the correct inequality statements

mezya [45]

Answer:

what are the options to the question

Step-by-step explanation:

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