Answer:
D
Step-by-step explanation:
When solving matrices, we need to get the inverse of the matrix
2 6
0 1 we need to get the inverse
The inverse is
.5 -3
0 1
This is what we have to multiply before the coefficient matrix of 2
-3
Through 1-3 There should be a line that goes from (0,0) to (3,15) as they did work for three hours. The rest seems fine.
The domain of the exponential function is all real numbers.
The answer is -17
The negative 7 and positive 7 add up to 0. They are opposites which cancel out. Think of it like being 7 dollars in debt (negative 7) and that debt is fully canceled out by the positive amount of money (positive 7). Put another way, the negative 7 means you go down 7 while the positive 7 means you go up 7.
After the first two terms cancel to 0, the -17 is the only thing left. Adding 0 to any number keeps that number the same.