Because taking the inverse of a matrix A involves multiplying a matrix by the scalar value 1/det(A), and that value is undefined when det(A)=0
The answer is 1400 because he got 400$ on the third to last week, 500$ on the second to last week, and 500$ on the last week. that adds up to 1400$
1/2 + 19/20
= 10/20 + 19/20
= 29/20
Answer:
C
Step-by-step explanation:
y < 1/3x -4
The y intercept is -4
The slope is 1/3
y is less than so the line is dotted
y is less than so we colour below the line
Please vote for Brainliest and I hope this helps!
Answer:
Step-by-step explanation:
- 1 min and quarter is equal to 75 seconds
- use cross multiplication
