The determinant is found by the formula ad-cb
where the letters are: a and b is the top row and c and d is the bottom row
so ad = 12*2 and cb = -6*0
12x2 = 24
-6x0 =0
24-0 = 24
the determinant = 24
Multiply the entire bottom eqn by 3 to get -3x + 9y = -15.
Add the two eqns together to cancel the x's and you get 11y = -11
Solve for y to get y = -1
Pick one of the two original eqns and plug y back in:
-x + 3(-1) = -5; simplify:
-x -3 = -5
-x = -2
x = 2
So your answer is (2, -1).
Bro what that looks like a face
Answer:
1: 6/125 cm3
2. 36/125 cm3
3. 8/125 cm3
4. 1/125 cm3
Step-by-step explanation:
Can you please give me brainliest?