Traveling at an average rateaverage rate of between 40 and 50 miles per hour for 3 to 4 hours select the best estimate for the distance traveled

160 miles

Step-by-step explanation:

Distance = speed × time

Speed 1 = 40miles/hr , speed 2 = 50 miles/hr

Time 1 = 3 hrs,  time 2 = 4 hrs

Distance 1 = speed 1 × time 1

= 40× 3 = 120 miles

Distance 2 = speed 2 × time 2

= 50 × 4 = 200 miles

Average distance = (distance 1+distance 2 ) ÷ 2

Distance = (200+120) ÷ 2 = 320 ÷2

= 160 miles

I hope this was helpful, please mark as brainliest

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )