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Explain the different sources of background radiation

Some of these sources are man made although the main source is from the environment. Radon gas from rocks and cosmic rays from the sun are the main enviromental sources. For man made sources, the main source...
JC
Answered by Jackson C. • Physics tutor
2339 Views

What are the roots of the graph of this equation: x^2 + 9x + 18 = 0

Roots are where the graph crosses the x-axis, which we find by solving the equation to find x. x = -6 or x = -3
MH
Answered by Mona H. • Maths tutor
2765 Views

The line y = x^2 -3x + 2 is reflected in the x-axis, find the equation of the new line that has been reflected.

To find the new equation you use the formula y = -f (x) to find the equation of the reflected line. Using y = -f (x) on y=x 2 - 3x + 2 means you need to change the signs from positive to negative or negative...
LM
Answered by Lily M. • Maths tutor
6796 Views

What is the function of the cell Mitochondria?

They act as energy centres for a cell and provide a cell with energy needed to function.
OD
2613 Views

Make c the subject of the formula a=3c-12

To approach this question, you need to think of simple algebra and what the question is asking for. If they want c to be the subject of the formula, they are looking for the answer to be in terms of c. To pu...
RH
Answered by Raphaelle H. • Maths tutor
5545 Views