What model?
I can’t see a problem
Answer:
The given statement is false.
Step-by-step explanation:
We are given the following statement:
"If a linear system has the same number of equations and variables, then it must have a unique solution."
The given statement is false because If a linear system has the same number of equations and variables, then it may have unique solution, no solution or infinitely many solution.
There could be three types of solution
- no solution,
- unique solution and
- infinitely many solutions,
depending on the augmented matrix and coefficient matrix of the linear system.
The solution to the problem is as follows:
Use law of sines.
18/sin90 = x/sin45
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Then you end up with 12.7279... </span>
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Rounds to 12.7
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Answer:
The first equation matches with equation (ii)
The second equation matches with equation (iii)
The third equation matches with equation (I)
(Image below)
Keep in mind that the first number in a coordinate is always on the x-axis (the horizontal line) and the second number is on the y-axis (the vertical line).
If the question asks us to plot (-3, 0), we need to find -3 on the horizontal line and find 0 on the vertical line.
Since 0 means that we go 0 units up, we can just plot the point at -3 on the x-axis.
Next, we need to plot (3, 5). First, let's find the first coordinate by locating 3 on the horizontal axis. Now, we need to find 5 up from that point, because our y-coordinate is 5.