A, B and Care matrices such that: A = (2 1), B - C 2.
) and c-
and C = (5 6). Given
that AB=C, calculate the values of x and y.

i. V Show that Ris non-singular
iiFind R the inverse of R.
ii. Show that RRI
iv. Using a matrix method, solve the pair of simultaneous equations
2x - y=0
x+3y=7​

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.