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work out 3 1/2 - 2 1/3. Give answer as an improper fraction

change everything to sixths. 21/6 - 14/6 = 7/6

MS
Answered by Maiya S. Maths tutor
3183 Views

which of these angles is obtuse?

An obtuse angle is an angle that is greater than 90degrees but less than 180 degrees. when looking at the diagram all angles apart from B are acute (as they are less than 90 degrees) Therefore B is the ob...

MS
Answered by Maiya S. Maths tutor
2419 Views

How can I find the normal to a curve at a given point?

Take the curve y = 2x2 - 4 and point P (2,4). a) First, find the straight line tangent to the curve at point P

AP
Answered by Artyom P. Maths tutor
4176 Views

What are the factors that affect the rate of a chemical reaction?

For a reaction to occur molecules must collide with energy greater than or equal to the activation energy, in the correct orientation. The factors affecting the rate of a reaction are:
Pressure of re...

AJ
Answered by Amelia J. Chemistry tutor
2972 Views

Sketch y = 9x – 4x^3, showing where the curve crosses the x axis.

First you should look at the equation and try and get a sense of the general shape of the graph. The highest power in here is a 3, so this is a cubic graph. The coefficient (number in front of the x^3) is...

AE
Answered by Anais E. Maths tutor
5228 Views

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