Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. (Note: receding means decreasing)
a. Write an equation for the water level, L, after d days.
b. Graph the equation.
c. In how many days will the water level be 26 feet?

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

the answer is -6

step-by-step explanation:

the answer is -6 because its next to the variable m