An object is traveling at steady speed of 9 4 /5 kilometer per hour how long will it take the object to travel 2 1/5 km first round the nearest integer to find the estimated answer then find the exact answer.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Can someone me with this problem . show your work .