Answer:
You still have 30 friends
Step-by-step explanation:
Give me brainliest, I answered first
Y = ax² + bx + c is the equation of a parabola:
y = 4x² -8x -6 is our equation.
The axis of symmetry in a parabola is x = -b/2a
x = -(-8)/(2.4) = - 8/8 and x = - 1 (axis of symmetry
Same amount of time every hour is constant rate.
25 min / 5 hrs = 5 min per hour
8 hrs × 5 min per hr = 40 min rest
12x+30+4
12x+34
This is 12x + 34 because when we combine all like terms, we get it.
