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Given a function f(x)=3x^2+5x-1, find its derivative.

Derivative of 3x^2 is 3*(derivative of x^2) which is 3*(2x)=6x. Derivative of 5x is 5*(Derivative of x) which is 5*1=5 and derivative of (-1) is 0. Hence the answer is derivative of f(x) defined above is 6x+5.
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Answered by Carla F. • Maths tutor
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Make x the subject of the following formula: 2x-4=2y.

To answer this question we must rearrange the equation to isolate y.Firstly, add 4 to each side, giving 2x=2y+4; Finally, divide both sides by 2 giving x=(2y+4)/2.
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Answered by Simbarashe S. • Maths tutor
4786 Views

Make x the subject of the following equation: 2x-4=2y.

To answer this question we must rearrange the equation to isolate y.Firstly, add 4 to each side, giving 2x=2y+4; Finally, divide both sides by 2 giving x=(2y+4)/2.
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Answered by Simbarashe S. • Maths tutor
5510 Views

How do cases work in German?

There are 4 cases in German: the nominative, accusative, dative and genitive. The nominative is used for the subject of the sentence (the thing/person doing the action). The accusative is used for direct obj...
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Answered by Marte V. • German tutor
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Explain why ionic substances have high melting points?

Ionic substances have high melting points because a lot of energy is required to break the strong, electrostatic forces of attraction between the oppositely charged ion in the ionic substance.
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Answered by Arunima B. • Chemistry tutor
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