Suppose a, b, and x are n times nn×n matrices with a, x, and a - ax invertible, and suppose that (a - ax)^-1 = x^-1 b. complete parts (a) and (b) below. a) explain why b is invertible. b) solve equation (3) for x. if matrix needs to be inverted, explain why that matrix is invertible.

10 b/c 5*2 =10

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies