Question

math problem

Answer 1

@Astrid1

Answer 2

@AZ

Answer 3

You need to post the problem you need help on so people can help you

Answer 4

@AZ

Answer 5

what is

x(2160 - 9x)

can you multiply the x into the parenthesis?

Answer 6

and remember to find the price, x, that gives the maximum revenue

it will just be -b/2a

Answer 7

x(2151x)

Answer 8

no, you cannot subtract 2160 and 9x

2160 is a number

9x is 9 times x

you need to multiply the x outside of the parenthesis inside

\(a(b-c) = ab - ac\)

x(2160-9x) = ??

Answer 9

2160x - 9x^2

Answer 10

good and that can be re-written as

-9x^2 + 2160x

and the vertex is going to be the maximum and since we want to find the maximum x-value, that would be -b/2a

a here is -9
and b is 2160

so what is

-b/2a = ?

Answer 11

-2160/2*-9x^2

Answer 12

-2160/18x^2

Answer 13

No...

I said a is -9

a is the coefficient in front of x^2

so -b/2a = -2160 / (2*-9) = ??

Answer 14

-2160/-18

Answer 15

divide

Answer 16

120

Answer 17

That's your final answer