Answer: In the equations that you have given, we have a dependent system.
2x + y = 8 (I assumed that you meant to type y instead of 7)
6x + 3y = 24
To use Cramer's Rule, we have to take the determinant of 3 different matrices written in the problem. Taking the determinant of the coefficient matrix produces a zero.
2 1 This is the coefficient matrix.
6 3
6 - 6 = 0
Since this is 0, the rest of the work will be undefined meaning the systems are dependent (or they are the versions of the same equation).
Answer:
b. x+y=18
20x+25y=400
Step-by-step explanation:
Answer:
- a=4
- b=12
- c=9
- You have correctly selected the standard form.
Step-by-step explanation:
(2x +3)² = (2x)² + 2(2x)(3) +(3)²
= 4x² +12x +9
Comparing that to ax² +bx +c, we can identify ...
