if Figure then, find the value of x
2009
if
Figure
then, find the value of x
- A.
2
- B.
3
- C.
4
- D.
5
Attempted by 29 students.
Show answer & explanation
Correct answer: C
To find the value of x, expand the determinant using the formula ad - bc.
Applying this to the given matrix: (3 * 5) - (3 * x).
This simplifies to 15 - 3x. Set this equal to the given value: 15 - 3x = 3.
Solving for x: 15 - 3 = 3x, so 12 = 3x, which means x = 4.