Question

Find the actual cost of producing the 53rd guitar.
C(x)=1000+100x-.25x^2

Answer 1

Assume x is the nth guitar produced.
C(53) = 1000+100(53)-.25(53)^2 = ... ?

Answer 2

C(53)=5524

Answer 3

Not really...

Answer 4

okay what did i do wrong

Answer 5

Can you show your steps? I can't tell since there are no workings there...

Answer 6

1000+100(52)-.25(52)^2
1000+5200-676
5524

Answer 7

I think you should substitute x= 53 instead of x=52..

Answer 8

oh okay so 5597.8

Answer 9

That's what I've got too :)

Answer 10

Thank You!!!

Answer 11

Welcome!~