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How would I write (1+4(root)7)/(5+2(root)7) in the form m + n(root)7, where m and n are integers?

We know that any value divided by itself is equal to 1, therefore we can multiply the value in the question by (5-2(root)7)/(5-2(root)7) and the value would not change. We are only changing the values format...
AD
Answered by Alexander D. • Maths tutor
4702 Views

What is PED and how do I calculate it?

PED stands for the Price Elasticity of Demand. This measures how responsive demand is for a product or service in relation to a change in price. The general formula for calculating the PED of a product is: P...
CC
11077 Views

What are the redox reactions involving carbonyls?

Carbonyls are aldehydes and ketones, both can be a product of an alcohol's oxidation reaction. A common reagent for that is potassium dichromate and sulphuric acid (the dichromate ion is reduced to a Cr 3+ a...
KJ
3145 Views

What is Pythagoras' Theorem and how do I use it?

Pythagoras' Theorem is used to find the length of the hypotenuse (longest side, opposite the 90 degree angle) of a right angled triangle when the length of the other 2 sides are known.The equation is a 2 +b ...
ST
Answered by Sophie T. • Maths tutor
3636 Views

Explain why a rise in investment should help to increase the rate of growth of the UK economy

Investment is part of Aggregate Demand (AD). If there is an increase in investment then there will be a rise in the demand for capital goods and this means that the firms supplying the goods will have an inc...
PM
Answered by Peter M. • Economics tutor
11942 Views