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What is the difference between a high level language and a low level language?

A high level language is written in human-oriented English-like keywords. It allows the programmer to use meaningful variable names, predefined functions and libraries and data structures (e.g. arrays/lists)...
AC
Answered by Aaron C. • Computing tutor
7237 Views

When do I use Sin, Cos or Tan?

You use these functions when you either have a length and an angle and you are looking for a length or when you have two lengths and are looking for an angle. There is a simple way to remember which one to u...
AC
Answered by Aaron C. • Maths tutor
13302 Views

An object orbits Earth at an altitude of 200 kilometers above the planet’s surface. What is its speed and orbital period?

To begin with, we need to draw a graph with all of the forces acting on a body. From that, we can see that the net force Fnet = Fg - Fc , where Fg is gravitational force and Fc is centripetal force acting on...
DA
Answered by Domas A. • Physics tutor
3820 Views

There are 30 yellow sweets and 10 black sweets in a bag. Two sweets are taken out at random without replacement. Work out the probability that the two sweets are the same colour.

It is important before proceeding with the question to note down a few key facts. As can be seen by the question there are 40 sweets in total. With probability questions in general it can be easy to remember...
JT
Answered by James T. • Maths tutor
9577 Views

Write y = x^2 + 4x + 6 in the form y = (x + a)^2 + b. What is the minimum value of y?

This is an example of completing the square. Notice that when we expand y = (x + a)^2 + b we get y = x^2 + 2ax + a^2 + b. By comparing coefficients (ie, making sure the number x is multiplied by and the cons...
NS
Answered by Naomi S. • Maths tutor
8287 Views