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Solve the inequality x^2+2x-8<0

-4&lt;x&lt;2Work out using whiteboard
AS
Answered by Abdullah S. • Maths tutor
4421 Views

Solve the two simultaneous equations y+5x=30 and 6y=-x+64

The easiest way to solve these equations is by substitution. Rearrange the 6y=-x+64 equation into the form of x=64-6y. Replace x in the other equation with x=64-6y to produce y+5(64-6y)=30. Multiply out the ...
HW
Answered by Harriet W. • Maths tutor
3680 Views

What is the value of the figure 1 in the number 2105?

Answer. The 1 in 2 1 05 has a value of 100 (One hundred).2105 reads out to be 'Two thousand, one hundred and five'
DU
Answered by David U. • Maths tutor
3370 Views

Find the turning point of y = x + 1 + 4/x2 and describe the nature of the turning point

To find the turning point of the equation, it should be recognised that we desire the point at which the gradient is 0. The gradient is given by dy/dx and hence we differentiate the equation with respect to ...
AK
Answered by Animit K. • Maths tutor
11702 Views

A linear sequence starts, a + 2b, a + 6b, a + 10b …….. …….. The 2nd term has value 8. The 5th term has value 44. Work out the values of a and b

As it states that it is a &quot;linear&quot; sequence. You can identify the pattern and recognise that the 4th and 5th terms will be, a+14b and a+18b respectively.As the 2nd term has the value 8. This means ...
HA
Answered by Haris A. • Maths tutor
4418 Views