Express A in the form A=L1DU1 where L1 is the lower triangular with 1's along the main diagonal, U1 is the upper triangular, and D is a diagonal matrix, given A=[(2 1 - 1) (-2 - 1 2) (2 1 0)]​

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Step-by-step explanation:

Given that

A =

Expressing A in the form =

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$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

d

step-by-step explanation: