WILL GIVE BRAINLIEST AND 20 POINTS! What is the correct formula for the value of the determinant? A. ab - cd B. ab + cd C. ad -
1 answer:
Answer:
Option C
Step-by-step explanation:
In the matrix, the determinant is the difference between the opposite elements multiplied.
So, the opposite elements multiplied will give us:
=> ad,bc
The difference is
=> ad-bc
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Answer:
ad fk kcfj dlajk jk djkfa ejk fks e
Step-by-step explanation:
X - the unit
3x; 4x; 5x - the lengths of the sides
3x + 4x + 5x = 30
12x = 30 |:12
x = 2.5
3x = 3 · 2.5 = 7.5 cm
4x = 4 · 2.5 = 10 cm
5x = 5 · 2.5 = 12.5 cm
X^2 + 3x - 18
2 numbers that multiplied give you -18
Those same 2 numbers have to add up to 3
6 x -3 = -18
6 + -3 = 3
(X + 6) (x - 3)
Answer:
64455545555555554444444444444444
