Step-by-step explanation:
Correction:
1⟩
Given equation is x²-3x = 4
⇛ x²-3x -4 = 0
⇛ x²+x-4x-4 = 0
⇛ x(x+1)-4(x+1) = 0
⇛ (x+1)(x-4) = 0
⇛ x+1 = 0 or x-4 = 0
⇛ x = -1 or x = 4
2.⟩
Given equation is x²+4x+4 = 0
⇛ x²+2x+2x+4 = 0
⇛ x(x+2)+2(x+2) = 0
⇛ (x+2)(x+2) = 0
⇛ x+2 = 0
⇛ x = -2
Answer:
x=17
Step-by-step explanation:
x-9=8
add nine on both sides
x-9+9=8+9
the nines on the side with the x cancel each other
x=17
Answer:
135
Step-by-step explanation:
2 x 54 = 108 and .50 x 54 = 27 so 108 + 27 = 135
Independent- meaning that the probabilities are not changing
Dependent- meaning that the probabilities are changing
I would guess paired because the prices are changing, meaning that the probabilities are also changing. <span />