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√5(√8 + √18) can be written in the form a√10 where a is an integer. Find the value of a.

We have: √5(√8 + √18) Now, multiply out the brackets (multiply everything inside the brackets by √5). This gives us √40 + √90 We now need to simplify the SURDs. We know that we want the answer in the form a√...
Answered by • Maths tutor
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outline the behavioral characteristics of OCD 4 marks

The behavioral characteristic of OCD is the compulsions, this is regarding the performance of the persons behaviour. There are two elements of compulsive behaviour:1) compulsions are repetitive - an OCD suff...
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Answered by Zaynah B. • Psychology tutor
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What causes the heart to contract?

This type of question requires careful explanation and therefore would need to be broken down into chunks. One of the reasons for this is that it may be completely new concepts for students. My answer to a s...
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Answered by Saajan R. • Biology tutor
5674 Views

Integrate the following with respect to x, f(x)=xsin(x)

f(x)= x sin(x) >>>>>>>>>>>>>>>>>> integral[ u dv/dx ] dx= uv - integral[v* du/dx] dx let x=u and sin(x)=dv/dx >>>>>>>>>>&gt...
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Answered by Jamie C. • Maths tutor
4157 Views

Write about one of your hobbies.

Pick a hobby which you're widely able to talk about and expand - likely something you're actually interested in as this makes it easier but if the vocabulary is complex (e.g. you have a hobby for rock collec...
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Answered by Emma D. • French tutor
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