2 years ago

I need help! this question is from my iready eighth grade test and I don’t understand it!!

Mathematics

1 answer:

Lina20 [59]2 years ago

7 0

It should be the 2 one

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Suppose the system below is consistent for all possible values of f and g. What can you say about the coefficients c and d? Just

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The answer is " $d \neq 3c,$ f and g are arbitrary".

Step-by-step explanation:

The matrix of the device is increased

$\left[\begin{array}{ccc}1&3&f\\ c&d&g\\ \end{array}\right]$

Reduce the echelon row matrix

$\left[\begin{array}{ccc}1&3&f\\ c&d&g\\ \end{array}\right] \\\\R_1 \leftrightarrow R_2 \\\\\frac{R_2 -1}{C R_1 \to R_2} \sim \left[\begin{array}{ccc} c&d&g\\ 0 & \frac{3c-d}{c}& \frac{cf-g}{c}\\ \end{array}\right]$

Therefore, if 3c $\neq$ 0 is d $\neq$ 3c, the device is valid. Therefore d $\neq$ are arbitrary 3c, g and f.

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2 years ago

Equivalent of 1.2 metre in cm

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Since one meter is equal to 100 centimeters, then 1.2 meters must be 120 centimeters

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Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

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