Answer:
α + β = - ba and αβ = ca.
⇒ x2 + bax + ca = 0 (Since, a ≠ 0)
⇒ x2 - (α + β)x + αβ = 0, [Since, α + β = -ba and αβ = ca]
Step-by-step explanation:
pls mark brainlist
X=-2 is the answer to your question.
<span>10x + 30(2) = 20(x + 2)
10x + 60 = 20x + 40
10x = 20
answer
x = 2 liters
So you would need 2 liters of the 10% solution to make the 30% solution 20%.</span>
So if there are twenty children and 6 have an average age of five, you could say their total age together is 30 years. The others (20-6) have an age of 8.
30+ (20-6)*8 = total age of every child at the library. From there divide by the number of children.
Answer:
volume of the prism is in³
Step-by-step explanation:
volume of a cube with side length of :
(in)³ = in³
multiply this area by the amount of cubes:
12 × 3 × 2 = 72 cubes
in³ × 72 = = in³
volume of the prism is in³