1 litre=1000 ml. 1000-250=750. That's your answer.
X²+6x+8=0
x²+2*3x+9-1=0
(x+3)²-1=0
(x+3)²-1²=0
(x+3-1)(x+3+1)=0
(x+2)(x+4)=0
x₁=-2
x₂=-4
Answer: x₁=-2, x₂=-4
Answer:
25.45 per lesson
Step-by-step explanation:
divide $305.40 by 12
Angle θ between two vectors is given by,

; where

;

and

.
Therefore,