exam Maths Puzzle Numerical Ability

Find the length of the line segment whose endpoints are (-3, 4) and (5, 4).

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exam Other Question

10) Two angles are complementary if their sum is 90e. If the measure of the first angle is xe, and the measure of the
second angle is (3x - 2)e, find the measure of each angle. solve the system by addition method. if a unique solution doesn't exist, state whether the system is inconsistent or dependent.
x+8y=10
-x+y-2z=-3
3x-2y+5z=9