For your second one when you have functions "composed" of each other, all you do is "put them in" each other. For example, if and then
Basically, I had this work due in by tomorrow and have gone as far as I can with it - So Im left with stuff I dont know how to do. Ill be pressing on with it through the night, but Ive skimmed over it and found the following that I will need some help with:
Done the other 2, just this random question left.(8) An engineering firm buys in nuts, bolts and washers for the following prices:
nuts = 8p each
bolts = 12p each
washers = 3p each
Over 3 months a total of 1520 nuts, bolts and washers are purchased for a price of £99:80 (ninety nine pounds and eighty pence). If 20 more nuts than bolts are purchased, how many types of each item are purchased in 3 months?
Just the random question annoying me now. Thanks to mathstud Ive finished one and figured out the other myself.
Hope I can get this last one figured out - Its really bugging me on how anyone can go about completing it
If not, its only 1 question and Im sure I can live with it :P!