Answer:
Does the answer help you?
Answer:
0.0167
Step-by-step explanation:
divide by 100
Answer:
y = 3
Step-by-step explanation:
9 - y = 2y
<u>Step 1: Add y to both sides</u>
9 - y + y = 2y + y
9 = 3y
<u>Step 2: Divide both sides by 3</u>
9 / 3 = 3y / 3
3 = y
Answer: y = 3
Answer:
Option b is the correct answer
Step-by-step explanation:
The graph in the picture is the graph of a quadratic equation and it takes the shape of a parabola.
The points on the x axis through which the parabola cuts across is used to determine the solution of the quadratic equation.
Looking at the parabola formed from the plotted points, it cuts the x axis at
x = -1 and x= -2
These are the factors of the equation. To get the equation, we multiply the factors.
x= -1, x +1 = 0
x =-2 , x + 2= 0
The equation is (x+1)(x+2)
Expanding the brackets,
x×x + x×2 +1×x + 1×2
= x^2 + 2x + x +2
= x^2 + 3x +2 = 0
Option b is the correct answer
