Write a program in java that solves a quadratic equation in all cases, including when both roots are complex numbers. for this, you need to set up the following classes:
? ? complex, which encapsulates a complex number
complexpair, which encapsulates a pair of complex numbers
quadratic, which encapsulates a quadratic equation

Jenny wants to look at row 345 and compare it to row 17. what can she do if she wanted to easily adjust to see both at once?

When you type the pwd command, you notice that your current location on the linux filesystem is the /usr/local directory. answer the following questions, assuming that your current directory is /usr/local for each question. a. which command could you use to change to the /usr directory using an absolute pathname? b. which command could you use to change to the /usr directory using a relative pathname? c. which command could you use to change to the /usr/local/share/info directory using an absolute pathname? d. which command could you use to change to the /usr/local/share/info directory using a relative pathname? e. which command could you use to change to the /etc directory using an absolute pathname? f. which command could you use to change to the /etc directory using a relative pathname?

What are the three uses of a screw?