Search our library of homework questions

Top answers

All subjects

All levels

Find the coordinate of the stationary point on the curve y = 2x^2 + 4x - 5.

The important point in the question is the term 'stationary point'. This is where the graph of y will 'flattern out'. If we look at this graph, we can say that the gradient is equal to 0 at this point. Th...

Answered by Serkan M. • Maths tutor

4949 Views

write (x+2)(x+3)(x+5) in the form ax^3+bx^2+cx+d

First take (x+2)(x+3) and expand to get x²+3x+2x+6, which can be simplified to equal x²+5x+6.Then mutiple x²+5x+6 by (x+5). This will give you x³+5x²

Answered by Cora H. • Maths tutor

3429 Views

Outline a factor that has led to globalisation

Globalisation is the growing integration of the world's economies.
One factor that has enabled globalisation to take place is the reduction in international trade barriers. This is because over the l...

Answered by Sam T. • Business Studies tutor

2019 Views

In which ways are the lungs adapted for efficient gas exchange?

There are three main ways in which the lungs are adapted for efficient gas exchange. These are: the fact that structures in the lungs called alveoli provide a large surface area for gas exchange. Also, th...

Answered by Holly M. • Biology tutor

4790 Views

How do you know whether a compound is ionic or covalent and how can you find the conductivity rate for both heat and electricity?

As a general rule metals bind to non-metals ionically, and non-metals to non-metals bind covalently. For example NH3 is covalent, vs NaCl is ionic. Conductivity rates for electricity are in general depend...

Answered by Roshan S. • Chemistry tutor

2624 Views