Matrices

Question	Answer
Image: Image (binary/octet-stream)	D. 0.5
Image: Image (binary/octet-stream)	B.(6, 7)
Joanne bought 3 baseball cards for $160. If the first card was as expensive as the combined price of the second and the third cards, and the second card cost $20 more than the third card, what is the price of the first card? A. 80 B. 50 C. 100 D. 60	A. 80
Image: Image (binary/octet-stream)	C and D
The commutative property holds for the _____ of two matrices but does not hold for the______ of two matrices.	addition subtraction
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	C. 5 × 3
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	-393, -74, 287 -471, 222, -91 251, -222, -349
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	D
Image: Image (binary/octet-stream)	-12 14
Image: Image (binary/octet-stream)	D
Image: Image (binary/octet-stream)	D
Image: Image (binary/octet-stream)	-7 -25
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	1st 3rd
Image: Image (binary/octet-stream)	2 11 11 -2 (https://brainly.com/question/11348371)
Image: Image (binary/octet-stream)	2nd 3rd
Image: Image (binary/octet-stream)	B
Which statement about inverse matrices is true? A. An inverse matrix is always a square matrix. B. An inverse matrix is never a square matrix. C. The determinant of an inverse matrix is always zero. D. There always exists a square matrix A-1 for which AA-1 = l.	A. An inverse matrix is always a square matrix.
Image: Image (binary/octet-stream)	B
Image: Image (binary/octet-stream)	C. No, because its determinant is zero.
Image: Image (binary/octet-stream)	C
Image: Image (binary/octet-stream)	4th 6th
Image: Image (binary/octet-stream)	3 -10.5
Image: Image (binary/octet-stream)	B

D. 0.5

B.(6, 7)

Joanne bought 3 baseball cards for $160. If the first card was as expensive as the combined price of the second and the third cards, and the second card cost $20 more than the third card, what is the price of the first card? A. 80 B. 50 C. 100 D. 60

A. 80

Image: Image (binary/octet-stream)

C and D

The commutative property holds for the _____ of two matrices but does not hold for the______ of two matrices.

addition subtraction

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

C. 5 × 3

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

-393, -74, 287 -471, 222, -91 251, -222, -349

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

D

Image: Image (binary/octet-stream)

-12 14

Image: Image (binary/octet-stream)

D

Image: Image (binary/octet-stream)

D

Image: Image (binary/octet-stream)

-7 -25

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

1st 3rd

Image: Image (binary/octet-stream)

2 11 11 -2 (https://brainly.com/question/11348371)

Image: Image (binary/octet-stream)

2nd 3rd

Image: Image (binary/octet-stream)

B

Which statement about inverse matrices is true? A. An inverse matrix is always a square matrix. B. An inverse matrix is never a square matrix. C. The determinant of an inverse matrix is always zero. D. There always exists a square matrix A-1 for which AA-1 = l.

A. An inverse matrix is always a square matrix.

Image: Image (binary/octet-stream)

B

Image: Image (binary/octet-stream)

C. No, because its determinant is zero.

Image: Image (binary/octet-stream)

C

Image: Image (binary/octet-stream)

4th 6th

Image: Image (binary/octet-stream)

3 -10.5

Image: Image (binary/octet-stream)