4 years ago

How many solutions does 9x+3=9x+5 have?

Mathematics

2 answers:

vlabodo [156]4 years ago

4 0

There is No Absolute Solution

lilavasa [31]4 years ago

3 0

Answer: No Solution

Step-by-step explanation: The Answer Is No Solution.

Have A Great Day!

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What is the x-intercept of the equation: 3x+6y=42

vlabodo [156]

Answer:

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Step-by-step explanation:

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3 years ago

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If L=√(x^2+y^2), dx/dt =-4, dy/dt=3, find dL/dt when x=4 and y=3

yulyashka [42]

Hello,

$L=\sqrt{x^2+y^2} \\\\\dfrac{dx}{dt}=-4\\\\\dfrac{dy}{dt}=3\\\\x=4, y=3\\\\\dfrac{\partial L} {\partial x} =\dfrac{x}{\sqrt{x^2+y^2}} \\\\\dfrac{\partial L} {\partial y} =\dfrac{y}{\sqrt{x^2+y^2}} \\\\\dfrac{dL}{dt} =\dfrac{\partial L} {\partial x}*\dfrac{dx}{dt}+\dfrac{\partial L} {\partial y}*\dfrac{dy}{dt}\\\\=-4*\frac{-4}{\sqrt{4^2+3^2}} +3*\frac{3}{\sqrt{4^2+3^2}}\\\\=\dfrac{16}{5} +\dfrac{9}{5} \\\\=5\\$