Lucas wrote the expression shown here 4(t + 5)
Which show an equivalent expression?
A. 4 + t + 5
B. 4t + 5
C. 4t · 20
D. 4t + 20

D

Step-by-step explanation:

4(t+5)

=4(t)+4(5)

=4t+20

answer: 1 and 3

step-by-step explanation:

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