F(x) = x²-81
g(x) = (x-9) -1(x+9)
= (x-9) -x-9
g(x) • f(x)
= [x²-81 ] • [ (x-9) -x-9 ]
=[ x²-81 ] • [ (x-x -9-9) ]
= [ x²-81 ] •[0-18]
= [ x²-81] •[ -18]
= -18•x² +-81•-18
= -18x²+1458
Answer:
Average cost per litre of diesel = rs 8.00
Step-by-step explanation:
Amount spent on diesel each year = rs 4000
Price of a litre of diesel in the first year = rs 7.50
Price of a litre of diesel in the second year = rs 8.00
Price of a litre of diesel in the third year = rs 8.50
Average cost per litre of diesel =
where n is the number of years.
Average cost per litre of diesel =
=
= 8
Average cost per litre of diesel is rs 8.00
So that he buys an average of 500 (i.e ) litres every year.
Answer:
We need more information to answer this question, I'd gladly help if there was some more data.
Step-by-step explanation:
its X < 1 or x > 3
where every the point goes is where the graph goes is what I do