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What is the integral of 2x^5 - 1/4x^3 - 5

Integrating is essentially the opposite of differentiating.x n --> x n+1 We add 1 to the power and re-introduce variables where they have been eliminated potentially k --> kxWe must also take into acco...
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Answered by Joshua S. • Maths tutor
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What factors influence development?

Development means countries changing and becoming more advanced. PHYSICAL FACTORS INFLUENCING DEVELOPMENT Climate -countries with unstable climates struggle to develop e.g. countries in the Sahel prone to dr...
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Answered by Luegi L. • Geography tutor
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Solve the following simultaneous equations: 2y = 8x + 6 // x = 3y + 7

First we must try to write y as a function of x, in this case it means halving the first equation so that we find that y = 4x + 3. Once we have dicovereved this. We can now write the y in our second equation...
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Answered by Andrew H. • Maths tutor
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Given the following equilibrium: H2O + H2O <-> H3O+ + OH- and the Kw = 10^-14, determine the concentration of OH- species after the addition of 1 mmol of HCl to 1 L of neutral water.

As HCl is a strong acid, it will fully dissociate in water, releasing 1 mmol of H + , which will be the final concentration of protons in solution. The autoprotolysis equilibrium of water (or K w ) at 25 ºC ...
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Answered by Samuel N. • Chemistry tutor
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The formula to convert from degrees Fahrenheit to degrees Celsius is C=(F-32)*(5/9). If it is 32 degrees Celsius, what is the temperature in Fahrenheit?

This question involves rearranging the equation to make F, the temperature in Fahrenheit, the subject of the formula. We'll start by writing out the original formula, and then we will move the elements of th...
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Answered by Sarah B. • Maths tutor
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