Given a linear system of equations below. The matrix equation of the linear system is given by: (see image)

Given a linear system of equations below.The matrix equation of the linear system is given by:

tricotasu
2021-01-10
Answered

Given a linear system of equations below. The matrix equation of the linear system is given by: (see image)

Given a linear system of equations below.The matrix equation of the linear system is given by:

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casincal

Answered 2021-01-11
Author has **82** answers

Consider the provided system of equation

The matrix equation of the linear system is given by,

Where,

given,

Find the value of x by using cramer's rule

here,

and,

Since,when system of equation as,

Then,

Now, the value of x find as,

Thus,

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Find the linear approximation of the function

Use L(x) to approximate the numbers

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A and B are sets of real numbers

$A=\left[y\mid y<4\right]$

$B=[y\mid y\ge 7]$

Write$A\cap B$ and $A\cup B$ using interval notation

Write

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Am I doing Vieta's Formulas correctly?

I've been given this exercise:${x}^{2}-(m+3)x+m+2$ , I'm supposed to check for which real values of the parameter m can be used for this to work:

$\frac{1}{{x}_{1}}+\frac{1}{{x}_{2}}>\frac{1}{2}$ (I multiply both sides by 2x1x2) and get the following:

$2({x}_{1}+{x}_{2})-{x}_{1}{x}_{2}>0$

which results to$m\succ 4$ using Vieta's formulas

Afterwards I have another argument,${x}_{1}^{2}+{x}_{2}^{2}<5$

After solving I get that m is in the interval$(-4,0)$

My book tells me the final result for possible M solutions is in the interval$(-2,0)$ .

I've been given this exercise:

which results to

Afterwards I have another argument,

After solving I get that m is in the interval

My book tells me the final result for possible M solutions is in the interval

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Range of k for roots of $|{x}^{2}-1|+{x}^{2}+kx=0$

lying between (0, 2)

lying between (0, 2)

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Deon drove 436 miles using 16 gallons of gas. At this rate, how many miles would he drive using 14 gallons of gas?