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Katarina [22]
1 year ago
9

Write the augmented matrix for each system of equations. 9x-4y-5z=9

Mathematics
1 answer:
MArishka [77]1 year ago
8 0

This is an incomplete question, but I found the complete question online.

Complete question:

Write the augmented matrix for each system of equations.

9x - 4y - 5z = 9

7x + 4y - 4z = -1

6x - 6y + z = -5

Answer:

\left[\begin{array}{ccc}9&-4&-5|9\\7&4&-5|-1\\6&-6&1|-5\end{array}\right]

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two adjacent angles of a parallelogram are in the ratio 5:2: . find all the angles of the parallelogram​
kicyunya [14]

<h2>Given :-</h2>

  • Two adjacent angles of a parallelogram are in the ratio of 5 : 2.

<h2>To Find :-</h2>

  • What is the all angles of the parallelogram.
<h3 /><h3 /><h2>Solution :-</h2>

Let, the first angles be 5x

And, the second angles will be 2x

As we know that,

★ Sum of all angles = 180° ★

According to the question by using the formula we get,

  • ⇒ 5x+2x=180°

  • ⇒7x=180°

  • ⇒ \sf x =\: \dfrac{\cancel{180^{\circ}}}{\cancel{7}}

  • ➠ \sf\bold{\red{x =\: 25.7^{\circ}}}

Hence, the required angles are,

  • First angles = 5x = 5(25.7°) = 128.5°
  • Second angles = 2(25.7°) = 51.4°

As we know that, 

opposite angles in a parallelogram

is equal.

∴ The all angles of a parallelogram is 128.5°,51.4°, 128.5° and 51.4°.

6 0
2 years ago
Marco picked answer A for the following problem. Why is that not the correct answer? (NO LINKS)
ICE Princess25 [194]

Answer:

This is not correct because the organic rice line in Graph A is increasing more than the conventional rice line. This is why the x- and y-labels are important: organic rice in Graph A; you are able to get more pounds for the same amount of weight. If organic rice costs more, you should get less pounds of rice. Graph B shows this relationship because the conventional rice line is higher than the orangic rice line, which indicates that you can get more conventional rice than organic rice at the same price, which is what the question says.

3 0
3 years ago
What is a multiply of 4
anastassius [24]

Answer:

2 times 2 or 24 im not sure

Step-by-step explanation:

8 0
2 years ago
The symphonic choir and the jazz choir are recording songs for an album. The album can be no more than 72 minutes long. The jazz
zimovet [89]

Answer:

The symphonic choir can record a maximum of 14 songs.

Step-by-step explanation:

We know that the album cannot be more than 72 minutes long, and the jazz choir records a total of 7 (3min) = 21  song minutes.

If we call c the number of songs the symphonic choir records , and each song is 3.5 minute long, then the song minutes for the symphonic choir are 3.5c; therefore, we have the inequality

3.5c+21\leq 72<em> (this says the song minutes for jazz choir plus song minutes for symphonic choice cannot exceed 72 minutes )</em>

We solve this inequality by subtracting 21 from both sides and then dividing by 3.5:

3.5c\leq 51

$c\leq \frac{51}{3.5} $

c\leq 14.47

The maximum integer value c can take is 14; therefore, the maximum number of songs the symphonic choir can record is 14 songs.

3 0
3 years ago
Find Z1 in trig form z1= (-3+4i)
Eva8 [605]

Answer:

i = \frac{1}{4} z +\frac{3}{4}

Step-by-step explanation:

z^{1}=−3+4i

4i−3=z

4i−3+3=z+3

4i=z+3

\frac{4i}{4} = \frac{z+3}{4}

8 0
3 years ago
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