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Solve the following equation: 5x - 1 = 3x + 7

5x - 1 = 3x + 75x = 3x + 82x = 8x = 4
DH
Answered by Daragh H. • Maths tutor
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What are the main differences between different loops when it comes to coding ?

This question is relevant to different coding languages, and it can be easily explained using Java language : for instance, we will use an integer array called FOR:for(int i=0;i<ArrayList.size();i++) the ...
GB
2173 Views

In an electric propulsion system, alpha particles are accelerated through a potential difference of 100kV at an average rate of 10^20 alpha particles per second. Calculate the average thrust the system can provide.

Take the mass of alpha particle to be 6.64 10^-27 kg accurate to 3 s.f. Note that the the work done in an electric field accross a potential difference is E = QV, where Q is the total charge of the alpha par...
AA
Answered by Alexandru A. • Physics tutor
3730 Views

How do I use my own knowledge in a Section A source analysis question?

You should use your own knowledge (OK) about the question as a lens through which to analyse the four sources. Instead of simply deploying OK to answer the question directly, use it to examine the provenance...
AN
Answered by Alexander N. • History tutor
7251 Views

Show, by first principles, that the differential of x^2 is 2x.

First I would draw a Diagram of y=x 2 on the x and y plane, for x>0. Then label a generic point as (x,y), then noting that as y=x 2 we can then equate the sane point to (x, x 2 ). Then I would note that a...
KJ
Answered by Kieren J. • Maths tutor
4094 Views