At the end of an advertising campaign, the weekly sales declined. The weekly sales y (in dollars) are modeled by the equation y = 6,000(4-0.09x), where x is the number of weeks after the end of the campaign.

2A) Determine the sales at the end of the campaign.

A)$6,000

B)$8,000

c)$24,000

d)$1,000

c)$24,000

Step-by-step explanation:

The function that models the decline of the sales is

where x is the number of weeks after the end of the campaign.

At the end of the campaign, will be no more weeks left.

So we x=0, and solve for y,

The correct answer is c)$24,000

s

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb