Select the correct answer
Jack knows the surface area of a cylinder and its radius. He wants to find the cylinder's height. He needs to rewrite the formula 4 = 27(+A)
to find the cylinder's height (in terms of the cylinder's surface area (A) and its radlus (). Which is the correct formula?

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

570, the answer is 570, hope it