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Expand (1+0.5x)^4, simplifying the coefficients.

Step 1. Draw Pascal's triangle to find the coefficients. 1; 1 2 1 ; 1 3 3 1 ; 1 4 6 4 1. As you can see, each row starts and finishes with 1. The numbers in between are worked out by adding the two numbers o...
SS
Answered by Srikka S. • Maths tutor
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What are the different steps involved in Proof by Induction?

The first step is to prove that the result is true for n=1.The second step is to assume that the result is true for n=k where k is any positive integer.The third step is to prove that the results is true for...
ÁF
Answered by Álvaro F. • Maths tutor
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Why did productivity in the UK remained stagnant after 2007?

Up until 2007 productivity in the UK had been rising at a satisfactory level, however after that it remained stagnant until today. Evidence shows that if the UK’s pre-2007 trend had continued, productivity t...
VT
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How do I systematically name alkanes?

When naming alkanes, I like to follow a set of rules:Firstly, draw out the molecule structurally showing all bonds present. Next identify the longest carbon chain. The longest carbon chain determines the suf...
NM
Answered by Nora M. • Chemistry tutor
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People who have McArdie's disease produce less ATP than healthy people. As a result, they are not able to maintain strong muscle contraction during exercise. Use your knowledge of the sliding filament theory to suggest why (AQA BIOL5)

Idea ATP is needed for:1. Attachment / cross bridges between actin and myosin;2. Power stroke / movement of myosin heads in rowing action / pulling of actin towards the centre of the sarcomere;3. Detachment ...
SO
Answered by Salma O. • Biology tutor
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