In 2007, your company's sales revenues were $400,000. a vigorous advertising campaign increased sales by 20% in 2008, and then by an additional 30% in 2009. what were sale's revenues in 2009?

first we multiply 400,000 by 1.20 which equals 480,000 which is the sales revenue for 2008 now we multiply 480,000 by 1.30 which equals 624,000

so your sales revenue for 2009 is $640,000

please mark brainliest.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)