years (b) 2010 (c) 2030 (a) 2005 will the world population be when you reach 65
ID: 3145390 • Letter: Y
Question
years (b) 2010 (c) 2030 (a) 2005 will the world population be when you reach 65 years old? ess The number of unique monthly visitors (in thou- sands) for Pinterest.com can be approximated by the function g(x) 325( 1.29"), where x 1 corresponds to the month of May, 2011. Estimate the number of unique monthly visitors for the following months. Data from: cnet.com and techcrunch.com.) (a) September 2011 (c) If the model remains accurate, find the month in which the (b) May 2012 number of unique visitors surpasses 40,000,000. . Econ omis Projections of the gross domestic product bin tillons of U.S. dollars), adjusted for purchasing power parity, are approximated as followsExplanation / Answer
a) for may 2011, x=1 therefore for september 2011, x= 5
monthly visitors for sept 2011 = 325(1.295) = 325*3.57 = 1160.99 = 1161(approx)
b) for may 2012: x= 13
monthly visitor = 325(1.2913) = 325*27.39 = 8903.27 = 8903(approx)
c) month in which visitors surpass 40,000,000
325(1.29x) = 40,000,000 => (1.29x) = 40,000,000/325
=> (1.29x) = 123,076.92 => (1.29x) = (1.2946)
x=46
for x=46, it will be feb,2015
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