Y=-(x – 3)^2 + a In the equation above, a is a constant. The graph of
the equation in the xy-plane is a parabola. Which of
the following is true about the parabola?
A) Its minimum occurs at (-3, a)
B) Its minimum occurs at (3, a).
C) Its maximum occurs at (-3, a
D) Its maximum occurs at (3,a).

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

5

step-by-step explanation:

- (2, -7)

- lines r and s and lines t and u must be parallel

im not preaty sure about that

step-by-step explanation: ax^2+bx+c=0= these nuts