Michael has constructed a device that fits on the end of a water hose. With this device, he can adjust the diameter of a tube connected to the end of the hose. He has found that the
speed of the water coming out of the hose varies inversely with the diameter of the tube
at the end of the hose. With the diameter set at.6 inches, the water will come out of the
hose at a speed of 5 feet per second. How fast will the water be moving out of the tube if
its diameter is reduced to .2 inches?

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.