Identify the cross section shown answer choices pentagon hexagon heptagon octagon

Which value is not a solution of 8x^3 – 1 = 0

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your