Well, if the integer is negative it would be positive, if it was positive it would be negative.
Negative x Positive = Negative
Negative x Negative = Positive
Answer:
-5
Step-by-step explanation:
Assuming that each unit is 1, then it is rise over run, which is -5/1=-5
Answer:
3:4
Step-by-step explanation:
8/6=4/3
12/9=4/3
16/12=4/3
Answer:
a,c,e
Step-by-step explanation:
Answer:
Step-by-step explanation:
The system of equations in vector form is
![5x_1 + x_2 - 3x_3 = 0 \\72x_2 + 9x_3 = 0](https://tex.z-dn.net/?f=5x_1%20%2B%20x_2%20-%203x_3%20%3D%200%20%5C%5C72x_2%20%2B%209x_3%20%3D%200)
And can be written in matrix form as
![\left[\begin{array}{ccc}5&1&-3\\0&72&9\\0&0&0\end{array}\right] \left[\begin{array}{c}x_1&x_2&x_3\end{array}\right] = \left[\begin{array}{c}0&0&0\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5%261%26-3%5C%5C0%2672%269%5C%5C0%260%260%5Cend%7Barray%7D%5Cright%5D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7Dx_1%26x_2%26x_3%5Cend%7Barray%7D%5Cright%5D%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D0%260%260%5Cend%7Barray%7D%5Cright%5D)
With three unknowns in two equations, the system has infinitely many solutions.