Consider the matrix shown below:

23

Step-by-step explanation:

The determinant of a matrix in the form is obtained by subtracting  the product of cd from the product of ad.

Now given the matrix

the determinant is calculated as :

Hence, the determinat is 23

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

but which class are u may know that first