- System of equations by using the addition method, solve for x+2y=-4 and x+y=2?

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A ranger wants to determine the height of a tree across a river. Elevation from bank 50°. Walls back 37 feet. New angle of elevation is 26°.? Using the idea notation of 132,find the smallest integer m such that 132m Is a perfect cube. Can some1 explain? Hi there, I know the answer to this question, but I cant figure out how to solve it, :( could someone please help? What is limitation of AC current? What is the circumference of the earth divided by 20?