exam Maths Puzzle Numerical Ability

Graph each absolute value function and state its domain and range.
f(x) = / x - 2 /

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exam Other Question

using the Gauss-jordan elimination method. i have to solve the following linear system. i have to show my work. the problem is as follows
7x +5y - 3z = 16
3x - 5y =2z = -8
5x + I need help on this problem please: (5-4i) and it has the squared sign outside the parentheses by the 4i.Thanks for your help in advance LH and have a great day!