Consider the pie chart, which depicts student enrollment by major. given that the central angle of the wedge that represents business majors measure 68 degrees, what percentage of the students enrolled are business majors? round your answer to the nearest whole number.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction