Top answers

w and x are whole numbers. w >40, x<30. Work out the smallest possible value of w-x.

To get the smallest value of w-x we will need the smallest value of w and the largest value of x.Our smallest possible value of w=41.Our largest possible value of x=29.So the smallest value of w-x = 41-29 = 12
EG
Answered by Esme G. • Maths tutor
15746 Views

How do you work out the tangent to a circle at a given point on the circle?

(Suppose the coordinates of the point on the circle is (2, 3))To calculate the tangents equation we will first work out it's gradient. The tangent to a circle at a point is perpendicular to the radius of the...
JH
Answered by James H. • Maths tutor
16169 Views

Express 5/8 as a decimal

Note that 1/4 as a decimal is 0.25, half of this is 1/8 which is 0.125.Multplying this by 5: we get 0.625
JM
Answered by James M. • Maths tutor
4436 Views

I struggle to simplify the following equation: (see answer)

3l 2 mn + nl 2 m - 5mn 2 l + l 2 nm + 2n 2 ml - mn 2 The first step is to ask yourself if there is anything that could help you simplify the equation, any recurring term or common factor. Here, we note that ...
LS
Answered by Luc S. • Maths tutor
3814 Views

Integral of Cosec(x)/Sec(x) (i.e. Use of trignometric identities)

∫ Cosec (x)/Sec (x) dx∫ [1/Sin (x)]/ [1/Cos (x)] dx∫ [1/Sin (x)] * [Cos (x)] dx∫ Cot (x)= ln [Sin (x)] + c
SM
Answered by Sean M. • Maths tutor
8063 Views