The estimated revenues r (in billions of dollars) from sales of digital music from 2002 to 2007 can be approximated by the model: r(t)=〖15.639t〗^3-104.75t^2+303.5t-3 01, t∈[2,7] where t represents the year, with t = 2 corresponding to 2002. Find the average of change of the model from 2002 to 2007. Interpret the result in the context of the problem.

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)

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation:

i dont know

step-by-step explanation: