A few of the variables for which data were collected in the Pew Internet & Life Project study about online shopping include age, gender, income, and the number of hours spent shopping online per month.  Which of the variables is categorical?

Which of the following vocal fold positions would have the worst impact on voice?

Of the following, which can serve as the solvent in a solution?

Evaluate the function for the given value of x. f (x) = x2 – 4x, g(x) = 2x – 4, (f ∘ g)(-2) = ?

The nth term of a sequence is given. Write the first four terms of the sequence. an = n(n3 – 8)

Refer to the values of k(x) and p(x) in the table, and evaluate the function for the given value of x. x k(x) p(x) -3​ -6​ -7​ -2​ 6​ 1​ 1​ 2​ 4​ 6​ -2​ 5​ (p ∘ k)(-2)

Solve the problem.Danielle stayed in three different cities (Washington, D.C., Atlanta, Georgia, and Dallas, Texas) for a total of 22 nights. She spent twice as many nights in Dallas as she did in Washington. The total cost for 22 nights (excluding tax) was $3,100. Determine the number of nights that she spent in each city. Let x, y, and z represent the number of nights in Washington, D.C., Atlanta, Georgia, and Dallas, Texas, respectively. First, write the system of linear equations. Second, write the Augmented Matrix for the system of linear equations then solve using the Gauss-Jordan Elimination. Please show the initial matrix, all the row operations in order, and the final matrix for credits.  

The nth term of a sequence is given. Find the indicated term.an = – 3; a10

1. The figure below shows a charged particle +q moving through a magnetic field, B. What is the direction of the force on this particle?  

7. A circular loop of wire of area 25 cm2 lies is the plane of the paper.   An increasing magnetic field B is coming out of the paper. What is the direction of the induced current in the loop?