Explanation:
The first determinant is that of the matrix of coefficients:
The second determinant is the same as the above but with the constants substituted for the x-coefficients.
The third determinant is the same as the first but with the constants substituted for the y-coefficients.
_____
The solution to the system of equations is then ...
The answer is C, < with the line under.
This is because the family wants to travel AT LEAST 1,400 miles, so it will be fine with either more or exact.
Answer:
110.866 meters per second
Step-by-step explanation:
This is what I got so far hope this helps you out if it doesn’t feel free to tell me
-sammy