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12² = 4² + x² [This is pythagoras' theorem (a² = b² + c²) ]
144 =16 + x ^2
128 = x²
11...

Answer: (x+7)/(2x)

d (3 + xy) = 4
d = 4/(3 + xy)

Firstly, we will find the volume of the cylinder using the formula V_cylinder =π r²h . Inputting the numbers given in the question gives V_cylinder = 36π.Given that V_cylinder = V_cone, and usi...

Write down y = 1/x³ This can be rewritten as y = 1x^-3 or just y = x^-3 as if the x is on the bottom of the fraction, it can be rewritten with a negative version of the powe...