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Vladimir [108]
3 years ago
14

Which expression represents the determinant of A=

Mathematics
2 answers:
Sindrei [870]3 years ago
7 0

The answer is 15 because 2x9-1x3 is 15 because 2x9= 18 subtracted by 1x3=3 is 15

Andrej [43]3 years ago
6 0

Answer:

A) det(A)= (2)(9)-(1)(3)

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=2%28x%20-%201%29%20%2B%203%281%20-%202x%29%20%20%20%3D%205%20-%20x" id="TexFormula1" title="2(
tamaranim1 [39]

Answer:

x = -4/3

Step-by-step explanation:

2(x-1) +3(1-2x) = 5-x

Distribute

2x-2 +3 -6x = 5-x

Combine like terms

-4x +1 = 5-x

Add 4x to each side

-4x+4x +1 = 5-x+4x

1 =5+3x

Subtract 5 from each side

1-5 =5-5 +3x

-4 = 3x

Divide each side by 3

-4/3 = 3x/3

-4/3 =x

5 0
4 years ago
Read 2 more answers
Which equation matches the graph shown?
Sedbober [7]
The correct answer would be C.

7 0
4 years ago
Read 2 more answers
Is this correct? Or wrong
hjlf
I believe you are right I checked the work and everything seems to be good !
8 0
3 years ago
Read 2 more answers
1. Discuss the differences between the measurement of the surface area and the measurement of the volume of a right rectangular
belka [17]
Surface area define or calculate the exact space that each face of the said shape is taken up while the volume is how much space is inside the said object. The area use the unit that is squared because it only measured 2 face in the shape while the volume measures 3 faces in the object. an example of an area is a card board area, while the volume is the glass of water.
5 0
4 years ago
If the sum of two consecutive odd number is 12 find them​
Fiesta28 [93]

Answer:

5 and 7

Step-by-step explanation:

<u>Fast and loose</u>: 12 is written as a sum of two odd numbers as 1+11; 3+9; 5+7. The only consecutive pair is 5 and 7

<u>Let's use algebra</u>: let's call 2n+1 the first and 2n+3 the second.

Their sum is 2n+1 +2n+3 = 4n+4 = 12. Thus, n+1=3 and n= 2. It means the 2 numbers are 2x2+1 =5 and 2x2+3 =7

5 0
3 years ago
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