math question 5?

3 ⤊

suppose that the function p=13+45 Ln x represents the % of spam email in the U.S. where x is the number of years after 2000

Carry all calculations to six decimals on each intermediate step when necessary.

a) Use this model to approximate the percentage of spam in the year 2003

thank you

2007-08-12 05:44:25 · 3 answers · asked by quepid622 1 in Science & Mathematics ➔ Mathematics

3 answers

p = 13 + 45 ln 3
p = 62.437553 %

2007-08-12 07:53:18 · answer #1 · answered by Como 7 · 3⤊ 0⤋

p = 13 + 45 log x
x = 2003 - 2000 = 3
thus,
p = 13 + 45 log 3
p = 13 + 45 * 0.477121
p = 62.437553%
therefore approximate % = 62.44%

2007-08-12 12:56:38 · answer #2 · answered by Rokkky 2 · 0⤊ 0⤋

2003 is year 3. p = 13 + 45*ln(3) = 62.437553. The answer is 62.437553%.

2007-08-12 12:47:15 · answer #3 · answered by DavidK93 7 · 0⤊ 0⤋