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Noah Z.
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Calculus
TutorMe
Question:

Take the first derivative of (x^2)+12.

Noah Z.

The derivative of a polynomial: 1) multiply the variable by the exponent 2) subtract one from the exponent and keep it as the new exponent The derivative of a constant is zero. Answer: 2x

Algebra
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Question:

Solve for x. (2+x^2)/3=6

Noah Z.

Solving step by step: 1) multiply both sides by 3 {{ (2+x^2)=18 }} 2) subtract 2 from both sides {{ x^2=16 }} 3) take the square root of both sides {{ x=4 }}

Physics
TutorMe
Question:

Determine the work done on a box if it takes 12 N to move it across the floor in 1 complete circle with diameter 2 m.

Noah Z.

Work equals force times displacement. (W=FxD Here we have a force of 12 Newtons but displacement is zero meters because displacement refers to how far out of place an object is. And because the box's overall position didn't change, zero work was done.

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