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What grade did you achieve?

I achieved an A in O level Mathematics.
RA
Answered by Rusab A. • Maths tutor
3939 Views

Using the quadratic equation, solve 3x^2+2x-15 to two decimal places.

The quadratic equation is x=(-b+-SQRT(b^2-4ac))/2a. In this instance, a = 3, b = 2, and c = 15. Simply putting the numbers in place of the letter counterpart, gives an answer of 1.93 and -2.59 to two decimal...
CF
Answered by Callum F. • Maths tutor
6136 Views

I struggle with integration, and don't understand why we need to do it

First, my approach is to ask student to count the squares on the area under a curve. This process is tedious, and only gives an estimation. Next, I show them the formula to do integration, and immediately th...
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Answered by Han Y. • Maths tutor
5268 Views

Solve the simultaneous equations: 3x +4y = 18, and 5x - 2y = 4

First of all, you would label the equations, so let's call 3x +4y = 18 equation A, and 5x - 2y = 4 equation B. Then you would try to find a way to eliminate one of the variables (either x or y). We can do th...
RS
Answered by Rob S. • Maths tutor
12451 Views

Solve the two simultaneous equations: 2y + x = 8 [A] and 1 + y = 2x [B]

I have labelled the two separate equations A and B so that it is easier to talk about them. There are two ways in which you can do these equations but I am going to explain the method using substitution. As ...
CD
Answered by Ciara D. • Maths tutor
8143 Views