Answer:
a
Step-by-step explanation:
Answer:
That means it will take you 1 and 1/3 hour to go a kilometer.
Step-by-step explanation:
subtrat 14 and 2 1/3 to get b
D(t) = -4t^3 + 40t^2 + 500t = 4088
4t^3 - 40t^2 - 500t + 4088 = 0
t = 7
Therefore, the plane has flown 4088 km 7 hours after it took off.
The segments AE, EC, AD and DB are in proportion.
Therefore we have the equation:
AE = 4ft, AD = 8ft and BD = 2ft. Substitute:
<em>multiply both sides by 2</em>