Top answers

Find the general solution, in degrees, of the equation 2sin(3x+45°)=1. Use your general solution to find the solution of 2sin(3x+45°)=1 that is closest to 200 °.

The first thing to do when we are facing a trigonometry problem is to to draw the sine and cosine diagram on the unit circle. That takes very little time to do and is incredibly helpful to visualize the peri...
FS
Answered by Francesco S. • Maths tutor
6639 Views

Describe an advantage of using vector graphics instead of bitmaps to represent images.

Often using vector graphics is better for images with which you want to retain scalability, as vector graphics store the information of the shapes (objects) that make up the image instead of the colour of ea...
DS
Answered by David S. • Computing tutor
2112 Views

What is hydrocarbon?

A hydrocarbon is a COMPOUND made from hydrogen and carbon elements ONLY. For example, crude oil is a mixture of hydrocarbons.
FH
9278 Views

There are 7 white socks and 4 black socks. 2 are taken at random without replacement. What is the probablity that 2 socks of the same colour are taken?

With a more wordy question like this, it is always best to break it up and write down all of the key pieces of information. So we want to work out the probability of picking: white AND white, OR, black AND b...
FH
Answered by Francesca H. • Maths tutor
4030 Views

What's the difference between diffusion and osmosis?

These 2 processes can be easily confused because they are both based on the idea of molecules moving from an area of HIGH concentration to LOW concentration. Diffusion= movement of ANY molecule. From an area...
FH
Answered by Francesca H. • Biology tutor
7617 Views