Answer:
y = 26.3x² - 116.9x + 109.6
Step-by-step explanation:
Given the data ;
Year Period Users (Millions)
2004 1 1
2005 2 5
2006 3 11
2007 4 58
2008 5 145
2009 6 359
2010 7 607
2011 8 846
A quadratic regression model can be obtained using a quadratic regression calculator ; The quadratic regression modeled obtained is in the form :
y = Ax² + Bx + C
y = 26.3x² - 116.9x + 109.6
Answer: $160
Step-by-step explanation:
80%is the same thing as
Also , since we are using equivalent ratio , we will look for a way to write 200 in order to have equivalent of 100. That is 200 is the same as 100 x 2
Therefore : 80% of a 200 is the same
x 100 x 2
which is the same as 80 x 2
$160