What is the distance between -3 and 12?

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

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

idk what the heck he answer is, i’m just putting this here so i finish my account

42.4 6th grade students prefer hip hop

step-by-step explanation:

40 percent of 106 = 42.4