1.) is f(x)=2x^3 + 2x and odd function

2.) is -5x^3 - 4 and even function ?

3.) 4x-4 an even even function ?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

For the feasibility region shown below find the maximum value of the function p=3x+2y

Acircle has a radius of 17. approximately what is the area of the circle