Apost 47m high is supported by wires attached to its top and to a point on level ground, 18m from the foot of the post. find the length of each wire.

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

What is the value for this expression? 2e-5