Scalar and Matrix Multiplication

Question 1

Match each multiplication problem with the answer.

Revolt · Accepted Answer

D; 1.: D; 2.: C; 3.: A; 4.: B

Question 2

2.

Revolt · Accepted Answer

C

Question 3

3.

Revolt · Accepted Answer

A

Question 4

4.

Revolt · Accepted Answer

B

Question 5

This matrix represents the length and width of a rectangle: Applying a scale factor means multiplying the length and width by the same factor to produce a similar rectangle. Use matrix multiplication to double the length and width of rectangle:

Revolt · Accepted Answer

=: 48; =: 36

Question 6

b =

Revolt · Accepted Answer

36

Question 7

Which rectangle represents the result of the matrix multiplication?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-06-52-10-04-task/mc001-2.jpg

Question 8

Which of the following matrix multiplications are possible?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-06-52-10-08-task/mr001-2.jpg; Answer image: //media.edgenuity.com/EVresources/3111-06-52-10-08-task/mr001-3.jpg

Question 9

What is the size of the matrix resulting from each multiplication?X 1 x 2✔ 2 x 22 x 1

Revolt · Accepted Answer

✔ 2 x 2

Question 10

X 3 x 13 x 3✔ 1 x 3

Revolt · Accepted Answer

✔ 1 x 3

Scalar and Matrix Multiplication Answers

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