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miv72 [106K]
2 years ago
15

In order for a matrix to be inverse, what must be true?

Mathematics
2 answers:
Marta_Voda [28]2 years ago
7 0
D


Mark brainliest please


Hope this helps
polet [3.4K]2 years ago
4 0
In order for the matrix to be inverse, its determinant must not equal to zero.

The inverse of a 2 × 2 matrix is: 1/(ad - bc)

In which (ad - bc) is the determinant. The determinant cannot be zero because division by zero is an undefined operation.

Therefore, the correct answer is:
D) ad - bc ≠ 0

Please mark my answer as the Brainliest, if you find this helpful :)
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Please help!!! Which equation is in point-slope form and is depicted by the line in this graph?
Blizzard [7]
Y-y1=m(x-x1)
a point on the line is (x1,y1) and the slope is m

so
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
so

points (-2,3) and (3,0)
slope is (0-3)/(3-(-2))=-3/(3+2)=-3/5
a point is (3,0) Or (-2,3)

so it could be
y-0=-3/5(x-3) or y-3=-3/5(x-(-2)) which is equal to y-3=-3/5(x+2)
that's the answer
B is answer
7 0
3 years ago
The height of the 50 -milliliter beaker is one-third the height of the 2000 -milliliter beaker. Complete the equation you can us
lbvjy [14]

Answer:

its eighteen centimeters because  

Step-by-step explanation:

6 divided by 1/3= 18

6 0
3 years ago
Read 2 more answers
Combine like terms to simplify the following expressions<br><br> 5y^2 + 7y - 8y^2 - 8y + 11
jenyasd209 [6]

Answer:

-3y^{2} -y+11

Step-by-step explanation:

Collect like terms

-3y^{2} +7y-8y+11

Collect like terms again and you get -3y^{2} -y+11

Hope this helps ʕ•ᴥ•ʔ

4 0
3 years ago
Read 2 more answers
A total of 1680 ounces of pet food have to be packed in 5 pound bags. How many 5 pound bags of pet food can be packed ?
mamaluj [8]
To begin with, we have to multiply 16 by 5, to determine how many ounces are in the bags. we get 80, no? we then divide 1680 by 80 to receive 21. your answer is 21.
5 0
3 years ago
Now, evaluate f (x) = 2x4 – 4x3 – 11x2 + 3x – 6 for x = –2.<br><br> f (–2) =
lorasvet [3.4K]

Answer:

f(- 2) =  8

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x) , that is

f(- 2) = 2(-2)^{4} - 4(- 2)³ - 11(- 2)² +3(- 2) - 6

       = 2(16) - 4(- 8) - 11(4) - 6 - 6

      = 32 + 32 - 44 - 12

      = 64 - 56

      = 8

3 0
2 years ago
Read 2 more answers
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