exam Maths Puzzle Numerical Ability

Solve each system by the addition method. Determine whether the questions are independent, dependent, or inconsistent.

3x-4y=9
-3x+4y=12

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exam Other Question

find any rational roots for the equation: 6x^4 - 7x^3 + 8x^2 - 7x + 2 = 0 Given triangle ABC similar to triangle DEF. If AB= 3 1/2 and DE=8 3/4, what is the ratio of the altitudes to the longest sides?