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3 years ago

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Evaluate the expression. [(3–5)(34)]3 1 Innermost group, apply the product of powers: [3–1]3 2 Apply the power of a power:

3–3 3 Apply the negative exponent: 1 33 4 Simplify: 1 x What is the value of x in the simplified expression? x=

2 answers:

Rainbow [258]3 years ago

8 0

Answer:

<h2>27</h2>

Step-by-step explanation:

The answer on edge

AysviL [449]3 years ago

7 0

Answer:

27

Step-by-step explanation:

I got this question right on e d g e n u i t y

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Solve for y: 2(3y + 5) = 3(5y + 3).<br> The solution is y =<br> The solution is

lisov135 [29]

Answer:

y = $\frac{1}{9}$

Step-by-step explanation:

Given

2(3y + 5) = 3(5y + 3) ← distribute parenthesis on both sides

6y + 10 = 15y + 9 ( subtract 6y from both sides )

10 = 9y + 9 ( subtract 9 from both sides )

1 = 9y ( divide both sides by 9 )

$\frac{1}{9}$ = y

4 0

4 years ago

Read 2 more answers

Solve the system of equations by using the inverse of the coefficient matrix of the equivalent matrix equation.

Alinara [238K]

The solution for the given system of equations x + 8y = -37, 4x + 8y = -52 is $\left[\begin{array}{ccc}&5&\\\\&4&\end{array}\right]$

Given,

System of equations as,

x + 8y = -37

4x + 8y = -52

We have to solve this by using the inverse of coefficient matrix of the equivalent matrix equation.

That is,

$A=\left[\begin{array}{ccc}a&&b\\\\c&&d\end{array}\right]$

$A^{-1} =\frac{1}{ad -bc} \left[\begin{array}{ccc}d&&-b\\\\-c&&a\end{array}\right]$

Now we can solve the equations.

Here we have,

x + 8y = -37

4x + 8y = -52

Now in matrix form,

$\left[\begin{array}{ccc}1&&8\\\\4&&8\end{array}\right]$ $\left[\begin{array}{ccc}&x&\\\\&y&\end{array}\right]$ $=\left[\begin{array}{ccc}&-37&\\\\&-52&\end{array}\right]$

A X B

We know that,

$A^{-1} =\frac{1}{ad -bc} \left[\begin{array}{ccc}d&&-b\\\\-c&&a\end{array}\right]$

Therefore,

$A^{-1} = \frac{1}{(1X8)-(4X8)} \left[\begin{array}{ccc}8&&-8\\\\-4&&1\end{array}\right]$

$=\frac{1}{8-32} \left[\begin{array}{ccc}8&&-8\\\\-4&&1\end{array}\right]$

$=\frac{1}{-24} \left[\begin{array}{ccc}8&&-8\\\\-4&&1\end{array}\right]$

$=\left[\begin{array}{ccc}\frac{-8}{24} &&\frac{8}{24} \\\\\frac{4}{24} &&\frac{-1}{24} \end{array}\right]$

Then,

$\left[\begin{array}{ccc}&x&\\\\&y&\end{array}\right] =$ $=\left[\begin{array}{ccc}\frac{-8}{24} &&\frac{8}{24} \\\\\frac{4}{24} &&\frac{-1}{24} \end{array}\right]$ $\left[\begin{array}{ccc}&\frac{37}{52} &\\\\\end{array}\right]$

$=\frac{1}{24} \left[\begin{array}{ccc}-8&&8\\\\4&&-1\end{array}\right]$ $\left[\begin{array}{ccc}&\frac{37}{52} &\\\\\end{array}\right]$

$=\frac{1}{24} \left[\begin{array}{ccc}(-8X37)+(8X52)\\\\(4X37)+(-1X52)\end{array}\right]$

$=\frac{1}{24} \left[\begin{array}{ccc}-296+416\\\\148-52\end{array}\right]$

$=\frac{1}{24} \left[\begin{array}{ccc}120\\\\96\end{array}\right]$

$=\left[\begin{array}{ccc}\frac{120}{24} \\\\\frac{96}{24} \end{array}\right]$

$=\left[\begin{array}{ccc}5\\\\4\end{array}\right]$

That is $\left[\begin{array}{ccc}x\\\\y\end{array}\right] =\left[\begin{array}{ccc}5\\\\4\end{array}\right]$

Learn more about matrix equations here: brainly.com/question/27799804

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The question is incomplete. Completed question is given below:

Solve The System Of Equations By Using The Inverse Of The Coefficient Matrix Of The Equivalent Matrix Equation.

x + 8y = -37

4x + 8y = -52

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1 year ago

What is the equation of the line of best fit that Frank drew?

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Can u post a picture of the graph?

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4 years ago

The legs of a right triangle are 8.4 ft and 11.1 ft find the length of the hypotenuse to the nearest tenth of a foot

True [87]

The hypotenuse would be 13.3

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4 years ago

Two math classes took the same quiz. The scores of 10 randomly selected students from each class are listed below. • Sample of C

padilas [110]

Answer:

Step-by-step explanation:

First you have to find the medians which is when you put the numbers in number order and find the one in the middle.

Class A: 60,65,70,70,75,80,80,85,90,90

=77.5

Class B: 75,85,85,85,90,90,90,90,95,100

=90

That the class B is more advanced, and they probably studied.

6 0

3 years ago