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N = 2A + B. A is a two-digit square number. B is a two-digit cube number. What is the smallest possible value of N?

A is a 2-digit square number. In order to find the smallest N number we want to find the smallest possible 2-digit sqaure number. To sqaure a number means to multiply this number by itself, e.g. the square n...
SK
Answered by Silvia K. • Maths tutor
8356 Views

A bag contains 12 bals of different colours: 5 red, 4 blue and 3 yellow. What is the probability of not selecting a red ball

The probability of an event not happening is 1 minus the probability of the event happening. Five of the twelve balls are red so the probability of selecting a red ball is 5/12. The probability of not select...
LD
Answered by Laura D. • Maths tutor
9908 Views

How to find the coordinates of the turning points of a curve on a graph

The turning point of a curve occurs when the gradient of the line = 0The differential equation (dy/dx) equals the gradient of a line. Therefore in this case the differential equation will equal 0.dy/dx = 0Le...
CG
Answered by Charlotte G. • Maths tutor
98845 Views

What can I do to revise maths?

Do every past paper you can find!
AL
Answered by Anabel L. • Maths tutor
4430 Views

If f(x)=8x-3, what is the inverse function?

To obtain the inverse fucntion basically all we have to do is re-arrange the equation and the do a small trick of swaping x and f(x), which can be done either at the start or at the end. Assuming we leavce i...
TA
Answered by Teresa A. • Maths tutor
12826 Views