Question: O a = -8, b= - O a = -3, b= - 10 None of the others D Question 10 1 pts What is the

O a = -8, b= -" O a = -3, b= - 10 None of the others D Question 10 1 pts What is the z-value of the solution to the following system? 2x + y + 2 0 2x + y + 4z 2x + 24 + 42 = 1 OO None of the others O -1 0 3 O 2 D Question 11 1 pts 1 1 Find the value(s) of k such that 0 1 is invertible. 0 k

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