Answer:
a. 3.75 +0.4m = 10.95
Step-by-step explanation:
Only one equation given has the mileage rate (0.40) multiplied by the number of miles (m). That is the correct choice.
Turn F(x) into vertex form:
y=x^2+8x+6
y-6=x^2+8x
y-6+16=x^2+8x+16
y+10=(x+4)^2
Thus the vertex is (-4,-10)
This is a minimum because the parabola is up up, or is positive
Answer: 5.5 hours
Step-by-step explanation:
distance/speed = time
330/60 = 5.5
Y - x = 2x - 2/3y
y = 3x - 2/3y
1 2/3y = 3x
y = 1.8x