
- subtract the 12 from both sides so that it becomes the last constant term in the quadratic equation which should now equal 0.
- take the 4x
- half the coefficient of 4 (2)
- square it (4)
- add it to the equation (+4)
- subtract it from the equation (-4)
- factorise the square (x+2)^2 expands to (x^2 + 4x + 2) as {a+b}^2={a^2 + ab + ba + b^2}
- now the equation is in turning point form.
- to find x, add 16 and square root 16 and (x+2)
- subtract 2 from positive or negative 4 (as -4^2 and 4^2 both equal 16).
- This should give you two values for x, -6 and 2.
I really hope that this helped :)
Answer:

Step-by-step explanation:
Circle F and J are congruent.

Given that: m∠DFE = 80°
DFE is the central angle of the circle F.
The measure of arc GH is equal to the central angle of Circle J.
Since both circles are congruent

The measure of arc GH is 80 degrees.
Dalia had an average airspeed of ⇒ 42 miles per hour.
The average wind speed was ⇒ 12 miles per hour.
Welll....from the diagram, you can see you have two triangles (one on each side)
area of triangle = 1/2 base*height = 1/2 * 2 x 15 = 15ft2 each then you are left with a rectangle 13 ft x 15= 195 ft2
195+15+15=
225 ft2 <----- ANSWER
Answer:
The graph in the attached figure
Step-by-step explanation:
we have

Plot the line
To plot the line find the intercepts
The y-intercept is the value of y when the value of x is equal to zero
so
For x=0

The y-intercept is the point (0,-2)
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0


The x-intercept is the point (0.667,0)
Plot the intercepts and then draw the line