the annual sales S (in billion of dollars) of oracle corporation from 2004 through 2009 can be approximated by the linear equation S= 2.903t-1.98, 4 is less than proximally T less than proximally 9, where t represents the year, with t=. use the model to 4 corresponding to 2004. use the model to estimate the year in which Oracle's annual sales were about 18 million.
just solve
2.903 t - 1.98 = 18
when you get t, add that to 2000
such bogus wordage. 4 <= t <= 9 is the condition.
4< t < 9 is the condition
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To estimate the year in which Oracle's annual sales were about 18 million, we need to plug in the given sales amount into the linear equation and solve for t, which represents the year.
Given: S = 2.903t - 1.98
First, let's estimate the year corresponding to 2004 by plugging in t = 4:
S = 2.903(4) - 1.98
S = 11.612 - 1.98
S ≈ 9.632
So, for t = 4, the estimated annual sales in 2004 is approximately 9.632 billion dollars.
Next, let's use the model to estimate the year in which Oracle's annual sales were about 18 million (in billion dollars). We need to find the value of t that makes S equal to 18.
18 = 2.903t - 1.98
Adding 1.98 to both sides:
18 + 1.98 = 2.903t - 1.98 + 1.98
19.98 = 2.903t
Dividing both sides by 2.903:
19.98 / 2.903 = 2.903t / 2.903
t ≈ 6.89
Therefore, according to the model, Oracle's annual sales were about 18 million (billion dollars) in the year approximately 6.89.