Math tables

A group of tenth-grade students responded to a survey that asked which math course they were currently enrolled in. The survey data were broken down as shown in the table above. Which of the following categories accounts for approximately 19 percent of all the survey respondents?

A bulb is hanging over a table. At which portion of the table is the illuminance maximum '? If a plane mirror is placed above the bulb facing the table, will the illuminance on the table increase ?

A book is lying on the table. What is the angle belween the action of the book on the table and the reaction of the table on the book?

A block of mass m slips on a rough horizontal table under the action of horiozontal force applied to it. The coefficient of friction between the block and the table is mu . The table does not move on the floor. Find the total frictional force aplied by the floor on the legs of the table. Do you need the friction coefficient between the table and the floor or the mass of the table ?

(a) Complete the table and by inspection of the table find the solution to the equation m + 10 = 16 .

A truth table is given, which of the following has this type of truth table?

Complete the table.