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Factorise the following a) 8x + 6y b) 7xy + 3xzy c)5xyz - 20x^2y^2z

In order to factorise successfully, we have found the highest common factor for part a,b and c (the highest number that can be divided exactly into each of the terms) and placed these outside of the brackets...
DS
Answered by Dhrushee S. • Maths tutor
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A rocket travels at 500m/s two minutes after its take-off. If it was initially stationary, calculate its acceleration. If the rocket has a mass of 1800kg, what force is required to give it an acceleration of 2m/s^2?

a) Acceleration is the rate of change of velocity of an object In this case, the equation that we will use to calculate it is a = (v - u )/ t where v is the rocket's final speed, u is its initial speed, and ...
DS
Answered by Dhrushee S. • Physics tutor
5510 Views

What does it mean to differentiate a function?

A function represents a quantity. For example the function s = (6t 2 + 4t) m, could represent displacement. The unknown t is inputted to find the displacement an object travels at a certain time. The differe...
NJ
Answered by Neha J. • Maths tutor
6005 Views

What factors cause the aggregate demand curve to shift?

The equation for aggregate demand is defined as C+I+G+(X-M) where C is consumption by households on things such as cars, furniture and petrol, I is investment by firms in new technology, factories and invent...
JH
Answered by Jake H. • Economics tutor
12918 Views

What is Pareto efficiency?

A situation, allocation or outcome is Pareto efficient if no one party can be made better off without another being made worse off. The outcome of a perfectly competitive market is Pareto efficient whereas t...
JH
Answered by Jake H. • Economics tutor
35773 Views