Answer:
what launguge do you speak? so i can translate
Step-by-step explanation:
Answer:
The product of given matrix is 
Step-by-step explanation:
Given : Two matrix

and 
We have to find the product of given matrix

Multiply the rows of first matrix by the columns of second matrix , we have,




On , simplifying , we get,

Thus, the product of given matrix is 
Answer:
19
Step-by-step explanation:
12-n/7 = -1
Cross multiply
We have 12-n = -7
Collect like terms
12 + 7 = n
Therefore n = 19
Answer:
It will take 19.2142857 hours
Step-by-step explanation:
1,345/70
Round to what you're required.