Rewrite the system of equations in matrix form.
This system has a unique solution 
so long as the inverse of the coefficient matrix 
exists. This is the case if the determinant is not zero.
We have
so the inverse, and hence a unique solution to the system of equations, exists as long as m ≠ -4.
Answer:
Step-by-step explanation:
The point where the lines intersect is called the point of intersection.These form opposite angles.
They got the 1.2 minutes by taking the total number of minutes (6) and dividing them by the number of laps run (5). So 6 divided by 5 gives you the 1.2.
Answer:
112 is the answer
Step-by-step explanation:
to find the value of x, you need to add both the numbers 34 and 78 to find x.
The value of 
when 
comes to be 
.
Given that trigonometric ratio:
<h3>What is the tangent of an angle?</h3>
The tangent of an angle is the ratio of the opposite side(to that angle) to the adjacent side(to that angle).
So, for the given problem
Opposite side to 
= 11
Adjacent side to = 60
So, 
Therefore, the value of when comes to be .
To get more about trigonometric ratios visit:
brainly.com/question/24349828
