Answer:
Option C is correct.
Step-by-step explanation:
y = x^2+4x+5
We need to find the vertex of the above equation.
The above equation represents the parabola.
The slope of parabola can be found by taking derivative of the given equation
dy/dx = 2x+4
The slope of the parabola at the vertex is zero SO,
2x+4 = 0
2x = -4
x = -4/2
x = -2
Putting value of x =-2 to find the value of y
y = x^2+4x+5
y =(-2)^2+4(-2)+5
y = 4-8+5
y =9-8
y = 1
So, the vertex is (-2,1)
Option C is correct.
Answer:
D
Step-by-step explanation:
Answer:
-7<-6
Step-by-step explanation:
Answer:
Car B would go faster because it goes 20 more km and that would mean that it drove that fast in 48 minutes, for 1/5 of 60 minutes (1 hour) is 12 minutes. As for Car A, that goes 60 km is 45 minutes. The only time difference between the two is 3 minutes, which is 3 minutes longer for Car B, although it goes faster. Car B also goes 20 more km faster.
**Also any Brainliests from the questioner would help :)
*I do hope that this helps!
-EarthGirl :3
