Answer:
Drt
Step-by-step explanation:
Dd
Answer:
1. 2A + 3A
2. 2A - B
3. 2A
4. 2(A-B)
Step-by-step explanation:
When multiplying matrix by a number you just multiply each number in the matrix by whatever you are multiplying. When adding 2 matrices you just add the corresponding number in each matrix. Ex: You add the top left number to the top left number. The same goes with subtraction.
12m-32=-80
12m=-80+32
12m=-48
m=-4
Arithmetic
Recursive: f(n)=(n-1) + 3 f(1)= 5
Explicit: f(n)= 5+3(n-1)
