An object that is projected straight downward with an initial velocity v feet per second travels a distance
s = vt + 16t2 where t = time in seconds. If a coin
dropped from a window 144 feet above the ground has an
initial velocity of O feet per second, in how many seconds
will the coin reach the ground?
O A. 12 seconds
O B. 9 seconds
O c. 4 seconds
O D. 3 seconds

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

true

step-by-step explanation:

3 is greater then both of those numbers

inch

step-by-step explanation:

yard and mile are too big.