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vfiekz [6]
3 years ago
6

Find the determinant of A.A.29B.2C.-2D.13​

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:

Step-by-step explanation:

The determinant of a matrix is a special number that can be calculated from a square matrix.

...

To work out the determinant of a 3×3 matrix:

Multiply a by the determinant of the 2×2 matrix that is not in a's row or column.

Likewise for b, and for c.

Sum them up, but remember the minus in front of the b.

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PLEASE HELP ASAP! QUESTION IS IN THE PICTURE! 30 POINTS!
Vadim26 [7]

65 = 12.1+h  the flower is 65 inches.  it has grown 12.1 inches since the last time he measured it.  the last time he measured it, it was height h.


65 = 12.1 + h

subtract 12.1 from both sides

65-12.1 = 12.1 + h- 12.1

52.9 = h

The last time he measured it it was 52.9 inches


5 0
3 years ago
Which graph represents the solution set of the system of inequalities?
Nimfa-mama [501]
Well first we need to change the format of the equations to slope-intercept, or y=mx+b.
So the first one (x + y < 1) will be changed to   y < -x + 1.
The second one (2y ≥ x - 4) will be changed to   y <span>≥ x/2 - 2.
Now we can analyze each graph.
In every single graph the first equation (y < -x + 1) is graphed correctly.
Now for the second equation, we can see that only the first and last graph correctly format to the equation.
Now for the shading:
The first equation shows us that y is less than -x +1, making the shading go under the dotted line. (to the left)
The second equation shows us that y is greater than or equal to x/2 - 2, making the shading go above the line. (also to the left)
Therefore, when we shade, the overlapping shading is correctly formatted in the first graph.
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5 0
4 years ago
Solve for X<br> 6x+60x+150=0
hammer [34]

Answer:

<h2><u><em>x = -2.27272727273</em></u></h2><h2><u><em>in fraction</em></u></h2><h2><u><em>x = -25/11</em></u></h2>

<u><em></em></u>

Step-by-step explanation:

Solve for X

6x+60x+150=0

66x = -150

x = -150 : 66

<u><em>x = -2.27272727273</em></u>

<u><em>in fraction</em></u>

<u><em>x = -25/11</em></u>

3 0
2 years ago
A bag contains nine red balls, four green balls, and fifteen yellow balls. What is the probability of
dmitriy555 [2]

Answer:

8

Step-by-step explanation:

When you subtract the 9-1=8

6 0
3 years ago
Which is shortest 0.81m 1.08m 0.8m 180cm 18cm
UkoKoshka [18]
I belive its 18cm,,,,,,,,,,,,,,,,,,,,,,,,,,,,
5 0
4 years ago
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