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Q4: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8632/.jpg"
Q22: Solve the system by substitution, if possible.
Q27: Completely factor the expression. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8632/.jpg" alt="Completely
Q78: Find the equation of the circle <img
Q90: Evaluate the expression for the given value
Q99: Find the determinant of the matrix <img
Q116: Perform the subtraction and simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8632/.jpg"
Q122: Find the exact value of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8632/.jpg"
Q131: Solve the system using Gauss-Jordan elimination. <img
Q144: Find the radian measure of the central