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Find f'(x) and f''(x) when f(x) = 3x^2 +7x - 3

We know that when f(x) = x^n, f'(x) = nx^n-1 (1) So we apply this to all components of f(x), giving f'(x) = 2(3x) + 7 = 6x +7 to find f''(x), we apply (1) to f'(x). Giving f''(x) = 6
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Answered by Georgiana P. • Maths tutor
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how do you form and use the near future tense?

Use the present tense form of aller in front of the infinitive of a verb to form the near future tense. EG: I am going to have a shower = Je vais prendre une douche. This can be used for describing things th...
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Answered by Thea H. • French tutor
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Find the area bounded by the curve x^2-2x+3 between the limits x=0 and x=1 and the horizontal axis.

In order to find the area bounded by a curve and the horizontal axis, we must integrate the curve between the specified limits. Firstly we must integrate the curve x^2-2x+3. To integrate a polynomial such as...
DG
Answered by Diljot G. • Maths tutor
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Explain what is meant by thermal decomposition

A reaction in which a substance is broken down into 2 or more substances by heat. An example is the breakdown of calcium carbonate into carbon dioxide and calcium oxide.
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Answered by Laura C. • Chemistry tutor
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Find where the graph of y=3x^2+7x-6 crosses the x axis

At the point where the line crosses the x axis, y=0 3x^2+7x-6=0 (3x-2)(x+3)=0 3x-2=0 or x+3=0 giving x=2/3 and x=-3 so the line crosses the x axis at (2/3,0) and (-3,0)
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Answered by Demi B. • Maths tutor
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