A researcher interviews shoppers at a local mall. The mall was chosen because it was close to the researcher's house.

Tell whether the situation describes a voluntary sample, convenience sample, or neither.

Let G be a group of order 143 = 11 * 13, and, as usual, let Z (G) denote the center of G. Assume that we have found an element x ∈ Z (G) with x = e. What are the possibilities for the |Z (G) |? Prove any assertions you make.

What is 78 million in scientific notation?

Steps for solving 5 (2x - 8) = 20 are shown. 5 (2x - 8) = 20 10x - 40 = 20 10x - 40 + 40 = 20 + 40 10 x = 60 10x Original Equation Step 1 Step 2 Step 3 98 8 Step 4 10 Step 5 Which of these is not part of the solution process?

Which is bigger 7/8 or 13/16

Why might banks charge higher interest rates to someone who they thought might not pay their loans? Select the best answer from the choices provided.

For which polygon is the sum of the interior angles equal to 540?

Use the following coefficients of a quadratic equation: a=2 b=4 c=-6 What are the solutions to the quadratic equation?

Which pair of equations represents perpendicular lines? a x+2y=8 : 2x-y=-8 b x+2y=8 : 2x+y=8 c x+2y=8 : - x-2y=8 d x+2y=8 : -x-2y=-8

4 * (2.1+3.9) - 7) + 6 * (6.2-4.2) =

Juanita sells homemade jam at the farmers' market. She sold 35 jars during the first hour and 85 jars during the second hour. Write an alegbraic expression to show the number of jars Juanita has left to sell.