Chapter 9.1, Problem 154E

uestion 10 of 12 A Your answer is incorrect. L 0/1 E This problem concerns hybrid cars such as the Toyota Prius that are powered by a gas-engine, electric-motor combination, but can also function in Electric-Vehicle (EV) only mode. The figure below shows the velocity, v, of a 2010 Prius Plug-in Hybrid Prototype operating in normal hybrid mode and EV-only mode, respectively, while accelerating from a stoplight. 1 80 (mph) Normal hybrid- 40 EV-only t (sec) 5 15 25 Assume two identical cars, one running in normal hybrid mode and one running in EV-only mode, accelerate together in a straight path from a stoplight. Approximately how far apart are the cars after 15 seconds? Round your answer to the nearest integer. The cars are 1 feet apart after 15 seconds. Q Search M 34 mlp CH

Find the volume of the region under the surface z = xy² and above the area bounded by x = y² and x-2y= 8. Round your answer to four decimal places.

У Suppose that f(x, y) = · at which {(x, y) | 0≤ x ≤ 2,-x≤ y ≤√x}. 1+x D Q Then the double integral of f(x, y) over D is || | f(x, y)dxdy = | Round your answer to four decimal places.