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3 years ago

Look at the picture I attached

Mathematics

2 answers:

kow [346]3 years ago

6 0

Answer:

Step-by-step explanation:

hope this helps

Nimfa-mama [501]3 years ago

4 0

Answer:

-4

Step-by-step explanation:

when you add a negative, you are subtracting it still. the same way you get to 12 from 8 is by 4. in this situation the 4 would be negative

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Just having one part does not make the triangles

12345 [234]

Answer: True.

Step-by-step explanation:

5 0

2 years ago

2. Solve the system of equations. Write your answer in parametric vector notation. X, +5x2 + 4x3 + 3x4 +9xs = 18 2x, +6x2 + 4x3

ratelena [41]

Answer:

The system is inconsistent.

Step-by-step explanation:

The system is

$x_1+5x_2+4x_3+3x_4+9x_5=18\\2x_1+6x_2+4x_3+6x_4+6x_5=28\\3x_1+7x_2+4x_3+10x_4+x_5=41\\4x_1+6x_2+2x_3+7x_4+4x_5=29$

The associated matrix to the system is

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\2&6&4&6&6&28\\3&7&4&10&1&41\\4&6&2&7&4&29\end{array}\right]$

Now we use row operations to find the echelon form of the matrix:

1. We substract to row 2, two times the row 1.

We substract to row 3, three times the row 1.

We substract to row 4, four times the row 1 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&-4&-4&0&-12&-8\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]$

2. We multiply the second row of the preview step by -1/4. We obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]$

We add to row 3, eight times the row 2.

We add to row 4, fourtheen times the row 2 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&-5&10&-155\end{array}\right]$

4. We add to row 4 of the preview step, five times the row 3 and obtain the matrix

$\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&0&0&-140\end{array}\right]$

Using backward substitution we have that

$0x_5=-140$ , then $0=-140$ and this is absurd. Then The system is inconsistent.

4 0

4 years ago

If a yarn is 4/5 long and the other yarn is 2/4 long. What is the equilivent fraction.Also try you best.

Kipish [7]

36/20 or simplified and as a mixed number would be:
1 and16/20

6 0

3 years ago

What is the mode of this data on the quiz scores? 100, 98, 95, 92, 88, 85, 80, 75

larisa86 [58]

Answer:

There is no mode.

Step-by-step explanation:

Be sure to put in there is no mode, don't put in zero. If you put in zero, it will seem like ) is the mode, you know what I mean.

Be sure to mark me Brainliest!

7 0

3 years ago

A polygon is reflected across a line. The angles in the original figure are compared to the corresponding angles in the image to

irina [24]

None. <span>They will always be congruent.</span>

5 0

3 years ago

Read 2 more answers

Look at the picture I attached​

Look at the picture I attached