Top answers

Solve: sin(x) = 0.5, in the interval of 0 < x < 360 degree.

sin(x) = 0.5 x = arcsin(0.5) x = 30 degrees , 150 (180-30) degrees
PA
Answered by Priyanka A. • Maths tutor
17478 Views

Explain in detail what do you understand by catalyst, what makes them so useful and give two example of catalytic processes including the name catalyst used.

Catalyst are chemical or biological substances that speeds up the rate of reaction without being used up in the overall process. It provides an alternative route for a reaction occur with a lower activation ...
PA
2910 Views

How do you find the determinant of a matrix?

Finding the matrix of a matrix can be done in 5 steps. Step 1 involves finding the determinant of the matrix, and putting this value aside for later. Step 2 finds the cofactors of each element. The cofactor ...
LC
4435 Views

Explain the general formula for a sraight line?

y=mx+c m = gradient of the line c = the y intercept x and y are variables
NM
Answered by Ndaba M. • Maths tutor
3954 Views

Describe what you would see when a piece of potassium is placed on water. Why does this happen?

THe potassium would move around on the water and fizz. This is because it is an alkali metal that reacts with the water. 2K + 2H2O --&gt; 2KOH + H2. The fizzing is the result of this reaction. Discussion reg...
NM
Answered by Ndaba M. • Chemistry tutor
10828 Views